UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 10-Q

x	*QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934*

For the quarterly period ~~ended March~~June 3130, 2006

¨	*TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934*

Commission File Number 001-32650

CBOT HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

Delaware

36-4468986

(State or other jurisdiction of

incorporation or organization)

(IRS Employer

Identification No.)

141 West Jackson Boulevard

Chicago, Illinois 60604

(312) 435-3500

(Address of principal executive offices) (Zip Code)

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨ Accelerated filer ¨ Non-accelerated filer x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No x

As of ~~April 28~~July 24, 2006, there were issued and outstanding approximately 52,~~816~~839,~~929~~500 shares of the registrant’s Class A common stock, par value $0.001 per share (consisting of approximately 20,~~084~~107,~~598~~100 shares of Class A common stock, approximately 16,353,~~172~~200 shares of Series A-2, Class A common stock and approximately 16,379,~~159~~200 shares of Series A-3, Class A common stock).

CBOT HOLDINGS, INC.

TABLE OF CONTENTS

FORM 10-Q — QUARTERLY REPORT

For the period ended ~~March~~June 3130, 2006

		Page
PART I - FINANCIAL INFORMATION
Item 1. Consolidated Financial Statements (unaudited)		1
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations		1213
Item 3. Quantitative and Qualitative Disclosures About Market Risk		1922
Item 4. Controls and Procedures		2023
PART II - OTHER INFORMATION
Item 1. Legal Proceedings		2124
Item 1A. Risk Factors		2124
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds		2124
Item 3. Defaults Upon Senior Securities		2124
Item 4. Submission of Matters to a Vote of Security Holders		2124
Item 5. Other Information		2125
Item 6. Exhibits		2125
SIGNATURES		2226
EXHIBIT INDEX		27

- i -

PART I - FINANCIAL INFORMATION

ITEM 1. CONSOLIDATED FINANCIAL STATEMENTS

CBOT HOLDINGS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION

(Unaudited, in thousands)

	March 31,2006		December 31,2005
	June 30,2006		December 31,2005
ASSETS
Current assets:
Cash and cash equivalents:
Unrestricted	$	9960,~~882~~629	$	99,575
Held under deposit and membership transfers		45,~~966~~279		1,746
Total cash and cash equivalents		~~104~~65,~~848~~908		101,321
Restricted cash		299,~~203~~182		14,031
Short term investments		~~253~~327,~~979~~956		239,888
Accounts receivable - net of allowance of $4,603 in 2005 and 2006		50,962		33,671
Accounts receivable - net of allowance of $4,688 in 2006 and $4,603 in 2005		55,959		33,671
Deferred income taxes		12,~~921~~240		1,962
Prepaid expenses		2320,~~233~~778		18,410
Total current assets		~~464~~482,~~146~~023		409,283
Property and equipment:
Land		34,234		34,234
Buildings and equipment		~~335~~340,~~415~~113		333,014
Furnishings and fixtures		~~189~~180,~~188~~813		198,083
Computer software and systems		93,~~719~~294		93,636
Construction in progress		4,~~469~~145		5,577
Total property and equipment		~~657~~652,~~025~~599		664,544
Less accumulated depreciation and amortization		~~412~~415,~~108~~691		409,789
Property and equipment - net		~~244~~236,~~917~~908		254,755
Other assets - net		2123,~~229~~403		21,829
Total assets	$	~~730~~742,~~292~~334	$	685,867
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	12,~~965~~291	$	20,455
Accrued clearing services		1516,~~023~~490		11,286
Accrued real estate taxes		68,~~078~~108		7,730
Accrued payroll costs		24,~~966~~931		6,351
Accrued exchange fee rebates		~~659~~400		1,200
Accrued employee termination		1,~~755~~141		3,063
Accrued liabilities		710,~~241~~672		7,395
Funds held for deposit and membership transfers		3313,~~220~~532		14,821
Current portion of long-term debt		1920,~~455~~014		19,366
Income tax payable		246,~~425~~001		5,751
Deferred revenue		~~432~~412		5,183
Total current liabilities		~~124~~93,~~219~~992		102,601
Long-term liabilities:
Deferred income tax liabilities		1412,~~872~~200		17,204
Long-term debt		—		10,716
Other liabilities		1314,~~837~~080		13,584
Total long-term liabilities		2826,~~709~~280		41,504
Total liabilities		~~152~~120,~~928~~272		144,105
Stockholders’ equity:
Common stock, $0.001 par value, 52,787 shares issued and outstanding		53		53
Common stock, $0.001 par value, 52,794 and 52,787 shares issued and outstanding as of June 30, 2006 and December 31, 2005, respectively		53		53
Additional paid-in capital		~~487~~488,~~404~~651		486,990
Retained earnings		89133,~~821~~281		54,719
Accumulated other comprehensive income		8677		—
Total stockholders’ equity		~~577~~622,~~364~~062		541,762
Total liabilities and stockholders’ equity	$	~~730~~742,~~292~~334	$	685,867

See notes to unaudited consolidated financial statements.

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CBOT HOLDINGS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited, in thousands, except per share data)

	Three Months Ended March 31,
	Six Months Ended June 30,						Three Months Ended June 30,
	2006			2005			2006			2005
Revenues:
Exchange fees	$	83174,~~120~~975		$	66136,~~518~~175		$	91,855		$	69,657
Clearing fees		2348,~~231~~597			2143,~~277~~836			25,366			22,559
Market data		2349,~~643~~929			1836,~~522~~828			26,286			18,306
Building		511,~~505~~415			511,~~608~~087			5,910			5,479
Services		48,~~236~~535			37,~~591~~214			4,299			3,623
Interest		37,~~483~~846			~~714~~1,415			4,363			701
Other		~~351~~758			~~227~~489			407			262
Total revenues		~~143~~302,~~569~~055			~~116~~237,~~457~~044			158,486			120,587
Expenses:
Clearing services		1837,~~023~~513			1633,~~516~~894			19,490			17,378
Contracted license fees		13,~~738~~652			13,~~625~~405			1,914			1,780
Salaries and benefits		1938,~~102~~130			1836,~~633~~535			19,028			17,902
Depreciation and amortization		1428,~~086~~875			1328,~~814~~045			14,789			14,231
Professional services		38,~~939~~497			49,~~592~~150			4,558			4,558
General and administrative expenses		59,~~076~~622			410,~~922~~089			4,546			5,167
Building operating costs		612,~~603~~605			613,~~638~~152			6,002			6,514
Information technology services		1224,~~230~~115			1022,~~677~~069			11,885			11,392
Programs		25,~~627~~713			25,~~016~~105			3,086			3,089
Interest		~~585~~973			~~922~~1,718			388			796
Severance and related costs		1,036			114
Litigation		—			4,000			—			4,000
Operating expenses		85,045			80,469
Severance and related costs		1,014			164			(22	)		50
Income from operations		58,524			35,988
Operating expenses		170,709			167,326			85,664			86,857
Income taxes
Income from operations		131,346			69,718			72,822			33,730
Current		25,466			16,577
Income taxes
Deferred		(2,291	)		(1,632	)
Current		57,634			33,579			32,168			17,002
Total income taxes		23,175			14,945
Deferred		(5,333	)		(3,250	)		(3,042	)		(1,618	)
Income before equity in unconsolidated subsidiary		35,349			21,043
Total income taxes		52,301			30,329			29,126			15,384
Equity in loss of unconsolidated subsidiary - net of tax		(246	)		(255	)
Income before equity in unconsolidated subsidiary		79,045			39,389			43,696			18,346
Net income	$	35,103		$	20,788
Equity in loss of unconsolidated subsidiary - net of tax		(483	)		(367	)		(237	)		(112	)
Earnings per share:
Net income	$	78,562		$	39,022		$	43,459		$	18,234
Basic	$	0.66
Earnings per share: (see note #4)
Diluted	$	0.66
Basic	$	1.49		$	0.35		$	0.82		$	0.35
Weighted average number of common stock shares
Diluted	$	1.49		$	0.35		$	0.82		$	0.35
Basic		52,787
Weighted average number of common stock shares
Diluted		52,840
Basic		52,789			49,360			52,792			49,360
Diluted		52,844			49,360			52,848			49,360

See notes to unaudited consolidated financial statements.

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CBOT HOLDINGS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited, in thousands)

	Three Months Ended March 31,
	Six Months Ended June 30,
	2006			2005
Cash flows from operating activities:
Net income	$	3578,~~103~~562		$	2039,~~788~~022
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization		1428,~~086~~875			1328,~~814~~045
Deferred income taxes (benefit)		(25,~~291~~333	)		(13,~~632~~250	)
Stock-based compensation		~~413~~1,661			—
Change in allowance for doubtful accounts		—85			~~230~~291
Gain on foreign currency transaction		(2	)		(149	)
(Gain) / Loss on foreign currency transaction		9			(321	)
Loss on sale or retirement of fixed assets		7			—
(Gain) / Loss on sale or retirement of fixed assets		7			(4	)
Equity in loss of unconsolidated subsidiary		~~411~~805			~~425~~613
Amortization of short term investment discounts		(1,~~094~~219	)		—(26	)
Changes in assets and liabilities:
Accounts receivable		(1618,~~654~~804	)		(139,~~993~~857	)
Income tax receivable / payable		18,674			13,569
Income tax payable		250			3,692
Prepaid expenses		(42,~~823~~368	)		(~~3,846~~523	)
Other assets		~~376~~(2,252	)		(~~410~~745	)
Accounts payable		(78,~~490~~164	)		(76,~~708~~447	)
Accrued clearing services		35,~~737~~204			13,~~925~~412
Accrued real estate taxes		~~(1,652~~378	)		~~(1,629~~372	)
Accrued payroll costs		(31,~~385~~420	)		(32,~~149~~045	)
Accrued exchange fee rebates		(~~541~~800	)		(~~714~~471	)
Accrued employee termination		(1,~~308~~922	)		(81130	)
Accrued liabilities		~~(702~~345	)		~~(35~~1,398	)
Funds held for deposit and membership transfers		18(1,~~399~~289	)		29,~~177~~861
Deferred revenue		(4,~~751~~771	)		4,~~484~~451
Other long-term liabilities		~~253~~496			~~292~~669
Net cash flows from operating activities		4668,~~766~~335			2468,~~358~~007
Cash flows from investing activities:
Acquisition of property and equipment		(410,~~195~~853	)		(419,~~932~~634	)
Purchase of short term investments		(~~124~~400,~~483~~116	)		—(24,674	)
Proceeds from short term investments		~~111~~313,~~486~~267			—14,836
Restricted cash		~~(15~~4,~~172~~849	)		3(14,~~636~~441	)
Proceeds from sale of property and equipment		93			—9
Investment in joint ventures		(~~254~~274	)		(6197	)
Net cash flows used in investing activities		(3293,~~525~~034	)		(144,~~302~~101	)
Cash flows from financing activities:
Repayments of borrowings		(10,714	)		(10,713	)
Capital contributions from members		—			~~124~~134
Net cash flows used in financing activities		(10,714	)		(10,~~589~~579	)
Net increase in cash and cash equivalents		3,527			12,467
Net increase (decrease) in cash and cash equivalents		(35,413	)		13,327
Cash and cash equivalents - beginning of period		101,321			~~142~~90,~~666~~591
Cash and cash equivalents - end of period	$	~~104~~65,~~848~~908		$	~~155~~103,~~133~~918
Cash paid for:
Interest	$	~~736~~846		$	1,~~089~~386
Income taxes (net of refunds)	$	657,~~627~~061		$	229,~~837~~678

See notes to unaudited consolidated financial statements.

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CBOT HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

~~Three~~Six Months Ended ~~March~~June 3130, 2006 and 2005

1. BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS

Basis of Presentation — CBOT Holdings, Inc. is a Delaware stock corporation created in April 2005 to be the holding company for the Board of Trade of the City of Chicago, Inc. and its subsidiaries (the “CBOT®”). In October 2005, CBOT Holdings, Inc. completed an initial public offering of shares of Class A common stock which trade under the ticker symbol “BOT” on the New York Stock Exchange. The accompanying unaudited consolidated financial statements include the accounts of CBOT Holdings, Inc., and its direct, wholly owned subsidiary, the CBOT (collectively, “CBOT Holdings”). CBOT Holdings has a 50% interest in a joint venture called the Joint Asian Derivatives Exchange (“JADE”) and also holds an approximate 5% interest in a joint venture called OneChicago, LLC (“OneChicago”). CBOT Holdings accounts for JADE and OneChicago under the equity method. All significant inter-company balances and transactions have been eliminated in consolidation.

~~Business —~~ The ~~primary~~accompanying ~~business~~unaudited ofconsolidated financial ~~CBOT~~statements ~~Holdings~~have isbeen ~~the~~prepared ~~operation~~pursuant ~~through~~to ~~its~~rules ~~wholly~~and ~~owned~~regulations ~~subsidiary, CBOT,~~ of ~~a marketplace for~~ the ~~trading~~Securities ofand ~~interest~~Exchange ~~rate~~Commission and, ~~agricultural~~therefore, ~~equity~~do ~~index~~not ~~and~~include ~~metals,~~all ~~energy~~information and ~~other futures~~footnote ~~contracts,~~disclosures asnormally ~~well~~included asin ~~options~~audited onfinancial ~~futures contracts~~statements. ~~The~~However, in ~~CBOT~~the ~~offers~~opinion ~~side-by-side trading~~ of ~~most~~management, ofall ~~its~~adjustments ~~products~~necessary ~~across~~to ~~both~~present ~~electronic~~fairly ~~trading~~the ~~and~~results ~~open-auction~~of ~~platforms.~~operations, ~~The~~financial ~~CBOT’s~~position ~~agricultural~~and ~~products~~cash ~~are~~flows ~~currently~~of ~~traded~~CBOT ~~during~~Holdings ~~the normal~~as ~~trading~~of ~~day~~June 30, on2006 ~~its~~have ~~open-auction~~been ~~platform~~made. ~~and~~Results ~~after~~for ~~hours~~interim onperiods ~~its~~are ~~electronic~~not ~~platform.~~necessarily indicative ~~The~~of ~~CBOT’s~~the ~~market~~results ~~participants~~that ~~include~~may ~~many~~be ofexpected for the ~~world’s~~entire ~~largest~~year. ~~banks,~~These ~~investment~~interim ~~firms~~financial ~~and~~statements ~~commodities~~should ~~producers~~be ~~and~~read ~~users.~~in ~~Other~~conjunction ~~market~~with ~~users include~~the audited financial ~~institutions,~~statements ~~such~~and asrelated ~~public~~notes ~~and~~for ~~private~~the ~~pension~~three ~~funds,~~years ~~mutual~~ended ~~funds~~December 31, ~~hedge~~2005 ~~funds~~included ~~and~~in CBOT ~~other~~Holdings’ ~~managed~~Form ~~funds,~~10-K ~~insurance~~for ~~companies,~~the ~~corporations,~~year ~~commercial~~ended ~~banks~~December 31, ~~professional independent traders and retail customers~~2005.

Business — The primary business of CBOT Holdings is the operation through its wholly owned subsidiary, CBOT, of a marketplace for the trading of interest rate, agricultural, equity index and metals, energy and other futures contracts, as well as options on futures contracts. The CBOT offers side-by-side trading of many of its products across both electronic trading and open-auction platforms. The CBOT’s agricultural products are currently traded during the normal trading day on its open-auction platform and after hours on its electronic platform. However, on August 1, 2006, CBOT Holdings expects its agricultural futures products to begin trading on its electronic trading platform, side-by-side with its open-auction platform. The CBOT’s market participants include many of the world’s largest banks, investment firms and commodities producers and users. Other market users include financial institutions, such as public and private pension funds, mutual funds, hedge funds and other managed funds, insurance companies, corporations, commercial banks, professional independent traders and retail customers.

The CBOT also engages in extensive regulatory compliance activities, including market surveillance and financial supervision activities, designed to ensure market integrity and provide financial safeguards for users of its markets. Further, the CBOT markets and distributes real-time and historical market data generated from trading activity in its markets to users of its products and related cash and derivative markets and financial information providers. The CBOT also owns and operates three office buildings in the City of Chicago.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Use of Estimates — The preparation of the accompanying unaudited consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affected the reported amounts in the financial statements, such as estimates for bad debts, exchange fee rebates, real estate taxes and assumptions used for the calculation of pension and other postretirement benefit plan costs. ~~Actual~~Although these and other estimates and assumptions are based on the best available information, actual amounts could differ from such estimates.

Prior Year Reclassifications — Certain reclassifications have been made of prior period amounts to conform to current period presentation.

Recent Accounting Pronouncements— In December 2004, the Financial Accounting Standards Board (“FASB”) issued Statement of Financial Accounting Standards (“SFAS”) No. 123 (revised December 2004) (“SFAS No. 123R”), Share-Based Payment, which establishes standards for the accounting for transactions in which an entity exchanges its equity instruments for goods or services, primarily focusing on transactions in which an entity obtains employee services in share-based payment transactions. It does not change the guidance for share-based transactions with parties other than employees provided in SFAS No. 123 as originally issued and EITF 96-18, “Accounting for Equity Instruments That Are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling, Goods or Services.” The Statement requires the measurement of the cost of employee services received in exchange for an award of equity instruments to be based on the grant-date fair value of the award. CBOT Holdings adopted SFAS No. 123R as of October 1, 2005. As a result, beginning in the fourth quarter of 2005, CBOT Holdings records the fair value of stock awards as compensation expense over the relevant service periods, as prescribed by SFAS No. 123R.

- 4 -

In March 2005, the FASB issued Interpretation No. 47 (“FIN 47”), “Accounting for Conditional Asset Retirement Obligations.” FIN 47 clarifies SFAS No. 143, Accounting for Asset Retirement Obligations, which states that the fair value of a liability for the conditional asset retirement obligation should be recognized when incurred. FIN 47 states that the term “conditional asset retirement obligation” refers to a legal obligation to perform an asset retirement activity in which the timing and (or) method of settlement are conditional on a future event that may or may not be within the control of the entity. The obligation to perform the asset retirement activity is unconditional even though uncertainty exists about the timing and (or) method of settlement. Thus, the timing and (or) method of settlement may be conditional on a future event. Accordingly, an entity is required to recognize a liability for the fair value of a conditional asset retirement obligation if the fair value of the liability can be reasonably estimated. One of the three buildings owned by CBOT Holdings contains some asbestos containing materials (“ACM”), primarily in pipe wrap, floor tiles, ceiling tiles and mastic. To the best of management’s knowledge and belief, all ACM is abated in compliance with Environmental Protection Agency (“EPA”), Occupational Safety and Health Association (“OSHA”) and other laws and codes. CBOT Holdings has not recognized a conditional asset retirement ~~obligation~~ obligation related to ACM abatement because it is not possible to make a realistic estimate of the fair value of future ACM removal costs because it is not known where ACM exists since it is typically in a concealed location.

In November 2005, the FASB issued FASB Staff Position (FSP) FAS 115-1 and FAS 124-1, “The Meaning of Other-Than-Temporary Impairment and Its Application to Certain Investments,” which clarifies when an investment is considered impaired, whether the impairment is other than temporary, and the measurement of an impairment loss. It also includes accounting considerations subsequent to the recognition of an other-than-temporary impairment and requires certain disclosures about unrealized losses that have not been recognized as other-than-temporary impairments. ~~This~~The ~~FSP is effective for all reporting periods beginning after December 15, 2005. It is not anticipated that the~~ adoption of this FSP ~~will~~did not have a significant impact on the CBOT’s financial position or results of operations.

In July 2006, the FASB issued Interpretation No. 48 (“FIN 48”), “Accounting for Uncertainty in Income Taxes - an interpretation of FASB Statement No. 109,” which clarifies the accounting for uncertainty in tax positions. FIN 48 seeks to reduce the diversity in accounting practices used in regards to uncertain tax positions by prescribing a recognition threshold and measurement criteria for benefits related to income taxes. The provisions of FIN 48 are effective for all reporting periods beginning after December 15, 2006. It is not anticipated that the adoption of FIN 48 will have a significant impact on the CBOT’s financial position or results of operations.

3. STOCK-BASED COMPENSATION

CBOT Holdings has a share-based compensation plan described below. The compensation cost recognized in the ~~first~~six ~~quarter~~and ofthree months ended June 30, 2006 related to the Plan was $1.7 million and $1.3 million, respectively. The total income tax benefit recognized in the income statement was $0.47 million and $0.5 million in the six and three months ended June 30, 2006, respectively. As of ~~March~~June 3130, 2006, there was approximately $67.02 million of total unrecognized compensation cost related to non-vested share-based compensation awards granted under the Plan. That cost is expected to be recognized ratably through the ~~first~~second quarter of 2010.

In 2005, CBOT Holdings adopted a Long-Term Equity Incentive Plan (the “Plan”) under which stock-based awards may be made to certain directors, officers and other key employees or individuals at the discretion of the board of directors. Grants authorized under the Plan include restricted stock, incentive or nonqualified stock options, stock appreciation rights and performance awards. A total of 1.2 million shares, which may come from authorized and unissued shares or from treasury shares, have been approved for use pursuant to the Plan. Nonqualified stock options may not have an exercise price below 100% of the market price of Class A common stock at the date of grant. Incentive stock options may not have an exercise price below 110% of the market price of Class A common stock at the date of grant. The maximum contractual term of any award under the Plan is ten years. Awards totaling ~~264~~292,~~884~~428 shares have been granted under the Plan as of ~~March~~June 3130, 2006.

- 5 -

Options — In ~~January~~the first six months of 2006, nonqualified stock options to purchase 27 32,000 shares of Class A common stock were awarded under the Plan. These options have graded four year vesting periods and a maximum term of 10 years. The following table summarizes options outstanding under the Plan as of ~~March~~June 3130, 2006:

	Time Vested Options						Market Performance Options
Options	Shares(000)	Weighted-AverageExercisePrice		AggregateIntrinsicValue($000)		Weighted-AverageRemainingTerm (yrs)	Shares(000)	Weighted-AverageExercisePrice		AggregateIntrinsicValue($000)		Weighted-AverageRemainingTerm (yrs)
Outstanding - beginning of year	150	$	54				50	$	54
Granted	2732		9294
Exercised	—		—
Forfeited or expired	—		—
Outstanding - end of period	~~177~~182	$	6061	$	10,~~550~~671	9.64	50	$	54	$	3,~~270~~280	9.63
Exercisable - end of period	0—	$	—	$	—	—	50	$	54	$	3,~~270~~280	9.63

The weighted-average grant date fair value of options granted during the first ~~quarter~~six months of 2006 ~~was~~ was approximately $4243 per share. No options vested during the first ~~quarter~~six months of 2006. The fair value of each option granted during the first ~~quarter~~six months of 2006 was estimated on the date of grant using a lattice-based option valuation model that ~~assumes~~ assumes expected volatility of 45%, expected term of 6 years, a risk-free interest ~~rate~~rates ofranging from 4.34% to 5.02 % and a dividend yield of zero.

Restricted Stock Awards — In ~~January~~the first six months of 2006, 1032,~~000~~544 shares of restricted stock were awarded under the Plan. NoRestricted ~~restricted~~ stock grants in the amount of 7,544 vested during the first ~~quarter~~six months of 2006. The following table summarizes non-vested shares under the Plan as of ~~March~~ June 3130, 2006:

Non-vested Shares	Shares(000)		~~Weighted- Average Grant-date Fair Value~~	Weighted-AverageGrant-date Fair Value
Non-vested - beginning of year	20		$	54$	54
Granted	1033			92	97
Vested	(8	)			97
Forfeited	—				—
Non-vested - end of year	3045		$	67$	78

4In May 2006, the board of directors of CBOT Holdings approved an Employee Stock Purchase Plan, subject to shareholder approval at CBOT Holdings’ 2007 annual meeting. ~~EARNINGS~~The ~~PER~~plan, ~~SHARE~~which is scheduled to become effective January 1, 2007, permits employees who have been employed by the company for at least one year (other than certain part-time employees and highly compensated employees who have been awarded restricted stock) to purchase shares of CBOT Holdings’ Class A Common Stock quarterly through payroll deductions at an exercise price equal to 90% of the fair market value of the stock on the exercise date. The plan permits eligible employees to purchase these shares through payroll deductions for up to 10% of their base compensation. It is expected that 1 million shares will be eligible for purchase under the plan if approved. In the event the plan is not approved by CBOT Holdings’ shareholders at the 2007 annual meeting, employees who purchase stock in the first quarterly purchase period will have taxable income in the amount of the 10% discount they received on the purchase price. Any payroll deductions made after the first quarterly purchase period will be refunded to the employees, and the plan will then be discontinued.

- 6 -

4. EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income by the weighted average number of shares of all Class A common stock outstanding for each reporting period. Diluted earnings per share is computed by reflecting the increase in the outstanding number of shares of Class A common stock if stock options or restricted stock awards were exercised or converted into common stock using the treasury stock method. Income used in the calculation of earnings per share for the six and three months ended June 30, 2005, only includes earnings allocated to the period after April 22, 2005, the date the CBOT completed a restructuring that changed the CBOT from a nonstock, not-for-profit company with members to CBOT Holdings, a stock, for-profit company with stockholders and the CBOT, a nonstock, for-profit exchange subsidiary with members. Weighted average number of shares used in the calculation is based on the average number of shares outstanding after April 22, 2005 rather than the entire reporting period.

Earnings per share are calculated as follows (in thousands, except per share data):

	Three Months Ended March 31, 2006
	Six Months Ended June 30,						Three Months Ended June 30,
	Net Income(Numerator)		Shares(Denominator)		Per-ShareAmount
	2006		2005				2006		2005
Basic EPS:	$	35,103	52,787		$	0.66
Net income	$	78,562	$	39,022			$	43,459	$	18,234
Effect of Dilutive Securities:
Net income allocated to pre-restructuring period		—		(21,824	)			—		(1,036	)
Options			46
Net income allocated to post-restructuring period	$	78,562	$	17,198			$	43,459	$	17,198
Non-vested restricted stock			7
Weighted average number of Class A common stock shares:
Diluted EPS:	$	35,103	52,840		$	0.66
Basic		52,789		49,360				52,792		49,360
Diluted		52,844		49,360				52,848		49,360
Earnings per share:
Basic	$	1.49	$	0.35			$	0.82	$	0.35
Diluted		1.49		0.35				0.82		0.35

Options to purchase 2732,000 shares of common stock at a weighted-average price of $9294 per share were outstanding during the ~~first~~ ~~quarter~~six ofand three months ended June 30, 2006 but were not included in the computation of diluted earnings per share because the effect would have been antidilutive.

5. RESTRICTED CASH

CBOT Holdings has cash deposits that under their terms cannot be withdrawn without prior notice or penalty. When a membership is sold in conjunction with the shares of Class A common stock that are associated with the membership, the proceeds of such sale are held in escrow for a specified period of time to allow other members to make claims against the selling member. This escrow account and other restricted cash at March 31, 2006 and December 31, 2005 consisted of the following (in thousands):

	March 31,2006		December 31,2005
Escrow for funds held for membership transfers	$	28,290	$	13,118
Forward contract collateral		913		913
Total	$	29,203	$	14,031

6. MARKETABLE SECURITIES

CBOT Holdings has short-term investments in U.S. Treasury securities and has the ability and the intent to hold them until maturity. These securities are debt securities classified as held-to-maturity and are recorded at amortized cost pursuant to SFAS No. 115, Accounting for Certain Investments in Debt and Equity Securities. Held-to-maturity debt securities with maturities of 90 days or less at the date of purchase are classified as cash and cash equivalents and held-to-maturity debt securities with maturities between 91 days and one year are classified as short-term investments in current assets. Held-to-maturity debt securities classified as short-term investments at March 31, 2006 and December 31, 2005 consisted of the following (in thousands):

	March 31,2006		December 31,2005
Held-to-maturity securities - less than one year maturity:
Amortized cost	$	253,979	$	239,888
Gross unrealized holding gains		107		167
Aggregate fair value	$	254,086	$	240,055

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5. RESTRICTED CASH

CBOT Holdings has cash deposits that under their terms cannot be withdrawn without prior notice or penalty. When a membership is sold in conjunction with the shares of Class A common stock that are associated with the membership, the proceeds of such sale are held in escrow for a specified period of time to allow other members to make claims against the selling member. This escrow account and other restricted cash at June 30, 2006 and December 31, 2005 consisted of the following (in thousands):


	June 30, 2006		December 31, 2005
Escrow for funds held for membership transfers	$	8,269	$	13,118
Forward contract collateral		913		913

Total	$	9,182	$	14,031

6. MARKETABLE SECURITIES

CBOT Holdings has short-term investments in U.S. Treasury securities and has the ability and the intent to hold them until maturity. These securities are debt securities classified as held-to-maturity and are recorded at amortized cost pursuant to Statement of Financial Accounting Standards No. 115, Accounting for Certain Investments in Debt and Equity Securities. Held-to-maturity debt securities with maturities of 90 days or less at the date of purchase are classified as cash and cash equivalents and held-to-maturity debt securities with maturities between 91 days and one year are classified as short-term investments in current assets. Held-to-maturity debt securities classified as short-term investments at June 30, 2006 and December 31, 2005 consisted of the following (in thousands):


	June 30, 2006		December 31, 2005
Held-to-maturity securities - less than one year maturity:
Amortized cost	$	327,956	$	239,888
Gross unrealized holding gains		133		167

Aggregate fair value	$	328,089	$	240,055

7. DEBT

Long-term debt at ~~March~~June 3130, 2006 and December 31, 2005 consisted of the following (in thousands):

	March 31,2006		December 31,2005
	June 30, 2006		December 31, 2005
Private placement senior notes, due in annual installements through 2007, at an annual interest rate of 6.81%	$	10,716	$	21,430
AEMS Financing agreement		89,~~739~~298		8,652
		19,455		30,082
		20,014		30,082
Less current portion		1920,~~455~~014		19,366
Total	$	—	$	10,716

In May of 2003, the CBOT signed a financing agreement with LIFFE Administration and Management (“LIFFE”) which allowed the CBOT to finance the costs under a development services agreement signed with LIFFE in March of 2003. Both the financing and development services agreement were subsequently assigned to Atos Euronext Market Solutions (“AEMS”). Under the terms of the financing agreement, the CBOT financed 15.1 million pounds sterling ($26.9 million at December 31, 2003) related to the development services agreement. Repayments of amounts financed began in 2004 and are due in equal annual installments through 2006. Interest was prepaid at the ~~time of the borrowing at an effective rate of approximately 5.6%. Prepaid interest related to the financing agreement of $2.7 million is being amortized~~ to interest expense over three years using an effective interest rate method. Obligations under the financing agreement are denominated in pounds sterling but converted into U.S. dollars using currency exchange rates in effect on each balance sheet date.

In the first quarter of 2006, an annual principal repayment of $10.7 million was made on the senior notes.

CBOT Holdings has an agreement with LaSalle Bank National Association (the “bank”) to provide CBOT Holdings with an unsecured $20.0 million revolving credit facility (the “Revolver”). Interest related to the Revolver is payable monthly at the lower of LIBOR plus 2.25% or the bank’s prime rate. The Revolver also provides letters of credit in the amounts of $4.0 million and 10.0 million pounds, or its U.S. Dollar equivalent. Further, the Revolver allows for the issuance of additional letters of credit, up to the unused portion of the $20.0 million line of credit. The Revolver contains certain covenants, which, among other things, require CBOT Holdings to maintain certain equity levels and financial ratios, as well as restrict CBOT Holdings’ ability to incur additional indebtedness, except in certain specified instances. No amounts have been borrowed nor are outstanding under the Revolver. The Revolver has a maturity date of February 14, 2007.

8. BENEFIT PLANS

At December 31, 2005, substantially all employees of CBOT Holdings were covered by a non-contributory, defined benefit pension plan. The benefits payable under this plan are based primarily on the years of service and the employees’ average compensation levels. The board of directors recently amended the pension plan of CBOT Holdings so that employees hired on or after January 1, 2006 will no longer be eligible to participate in a defined benefit pension plan, but instead will be eligible to participate in a defined contribution pension plan. CBOT Holdings’ funding policy for the defined benefit pension plan is to contribute annually the maximum amount that can be deducted for federal income tax purposes. CBOT Holdings has not contributed to its pension plan during the three months ended March 31, 2006 and does not expect to make a contribution by December 31, 2006. The plan assets are primarily invested in marketable debt and equity securities. The measurement date of plan assets and obligations is December 31.

- 8 -

time of the borrowing at an effective rate of approximately 5.6%. Prepaid interest related to the financing agreement of $2.7 million is being amortized to interest expense over three years using an effective interest rate method. Obligations under the financing agreement are denominated in pounds sterling but converted into U.S. dollars using currency exchange rates in effect on each balance sheet date.

In the first quarter of 2006, an annual principal repayment of $10.7 million was made on the senior notes.

CBOT Holdings has an agreement with LaSalle Bank National Association (the “bank”) to provide CBOT Holdings with an unsecured $20.0 million revolving credit facility (the “Revolver”). Interest related to the Revolver is payable monthly at the lower of LIBOR plus 2.25% or the bank’s prime rate. The Revolver also provides letters of credit in the amount 10.0 million pounds, or its U.S. Dollar equivalent. Further, the Revolver allows for the issuance of additional letters of credit, up to the unused portion of the $20.0 million line of credit. The Revolver contains certain covenants, which, among other things, require CBOT Holdings to maintain certain equity levels and financial ratios, as well as restrict CBOT Holdings’ ability to incur additional indebtedness, except in certain specified instances. No amounts have been borrowed nor are outstanding under the Revolver. The Revolver has a maturity date of February 14, 2007.

8. BENEFIT PLANS

At December 31, 2005, substantially all employees of CBOT Holdings were covered by a non-contributory, defined benefit pension plan (the “Pension Plan”). The benefits payable under the Pension Plan are based primarily on the years of service and the employees’ average compensation levels. In December 2005, the board of directors amended the Pension Plan of CBOT Holdings so that employees hired on or after January 1, 2006 are no longer eligible to participate in the Pension Plan, but instead are eligible to participate in a newly created defined contribution pension plan.

CBOT Holdings’ funding policy for the defined benefit pension plan is to contribute annually the maximum amount that can be deducted for federal income tax purposes. CBOT Holdings has not contributed to its pension plan during the six months ended June 30, 2006 and does not expect to make a contribution by December 31, 2006. The plan assets are primarily invested in marketable debt and equity securities. The measurement date of plan assets and obligations is December 31.

The components of net periodic benefit cost are as follows (in thousands):

	Three Months Ended March 31,
	Six Months Ended June 30,						Three Months Ended June 30,
	2006			2005			2006			2005
Service cost	$	~~807~~1,614		$	~~579~~1,278		$	807		$	699
Interest cost		~~687~~1,375			~~499~~1,089			688			590
Expected return on plan assets		(~~927~~1,854	)		(~~551~~1,468	)		(927	)		(917	)
Net amortization:
Unrecognized prior service cost		12			1			1			—
Unrecognized net loss		~~244~~488			~~207~~386			244			179
Net periodic benefit cost	$	~~812~~1,625		$	~~735~~1,286		$	813		$	551

CBOT Holdings has a retiree benefit plan which covers all eligible employees. Employees retiring from CBOT Holdings on or after age 55, who have at least ten years of service, or after age 65 with five years of service, are entitled to postretirement medical and life insurance benefits. CBOT Holdings funds benefit costs on a pay as it goes basis. The measurement date of plan obligations is December 31.

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The components of net periodic benefit cost are as follows (in thousands):

	Three Months Ended March 31,
	Six Months Ended June 30,				Three Months Ended June 30,
	2006		2005		2006		2005
Service cost	$	~~150~~300	$	~~132~~279	$	150	$	147
Interest cost		~~174~~348		~~169~~324		174		155
Net amortization:
Transition liability		3570		3265		35		33
Unrecognized net loss		3367		5262		34		10
Net periodic benefit cost	$	~~392~~785	$	~~385~~730	$	393	$	345

9. FOREIGN CURRENCY FORWARD CONTRACTS

CBOT Holdings currently utilizes foreign currency forward contracts, which are designated as fair value hedges that are intended to offset the effect of exchange rate fluctuations on certain payment obligations denominated in pounds sterling. These contracts had notional amounts approximating $4038.95 million (2322.96 million pounds sterling) at ~~March~~June 3130, 2006. The fair value of these contracts, ~~which~~ which was $03.82 million at ~~March~~June 3130, 2006, is recorded in accounts receivable. Gains and losses on these hedge instruments, as well as the gains and losses on the underlying hedged item, offset each other and were therefore zero in the first ~~quarter~~ six months of 2006. There were no gains or losses recorded on these fair value hedges related to hedge ineffectiveness.

CBOT Holdings also ~~utilizes~~ utilizes foreign currency forward contracts that are intended to offset the effect of exchange rate fluctuations on debt that is denominated in pounds sterling. These contracts, which are not designated as hedges under FASB Statement No. 133, ~~had~~ had notional amounts approximating $8.6 million (5.0 million pounds sterling) at ~~December~~June 3130, ~~2005~~2006. Gains and losses on these instruments, as well as the gains and losses on revaluing the recorded debt were recognized in general and ~~administrative~~ administrative expense.

10. LITIGATION

On October 15, 2003, Eurex US filed an antitrust action in federal court against the CBOT and the Chicago Mercantile Exchange (the “CME”) alleging that the companies illegally attempted to block its entrance into the U.S. market and charging the CBOT and the CME with having violated the Sherman Act, among other things, by offering financial inducements, valued at over $100 million, to shareholders of The Clearing Corporation to vote against a proposed restructuring of The Clearing Corporation. Eurex subsequently amended its complaint to make additional charges, including a claim that the CBOT and the CME misrepresented Eurex’s qualifications in their lobbying of Congress and the Commodity Futures Trading Commission.

-On 9December 12, -2003, the CBOT filed in the U.S. District Court for the District of Columbia a motion to dismiss the amended complaint and a motion to transfer the action to the U.S. District Court for the Northern District of Illinois. On September 2, 2004, the United States District Court for the District of Columbia granted the CBOT’s motion to transfer the case to the United States District Court for the Northern District of Illinois. The court denied the CBOT’s motion to dismiss as moot in light of its ruling on the transfer motion. Eurex filed a second amended complaint in the Northern District of Illinois in late March 2005. In addition to the allegations in Eurex’s previous complaints, that complaint alleges, among other things, that the CBOT engaged in predatory pricing and, together with the CME, engaged in a campaign to block regulatory approval of the Eurex proposed Global Clearing Link between The Clearing Corporation, Eurex’s U.S. clearing house in Chicago, and Eurex Clearing in Frankfurt. Eurex seeks treble damages under the antitrust laws in an amount to be proven at trial, injunctive relief enjoining the alleged antitrust violations and compensatory and punitive damages for alleged tortious interference with prospective business opportunities. On June 6, 2005, the CBOT and CME filed a joint motion to dismiss the second amended complaint, which the court denied on August 22, 2005. On October 5, 2005, the CBOT filed its answer and defenses to the second amended complaint. The parties are currently engaged in ongoing discovery for this matter.

- 10 -

Clearing Corporation. Eurex subsequently amended its complaint to make additional charges, including a claim that the CBOT and the CME misrepresented Eurex’s qualifications in their lobbying of Congress and the Commodity Futures Trading Commission.

On December 12, 2003, the CBOT filed in the U.S. District Court for the District of Columbia a motion to dismiss the amended complaint and a motion to transfer the action to the U.S. District Court for the Northern District of Illinois. On September 2, 2004, the United States District Court for the District of Columbia granted the CBOT’s motion to transfer the case to the United States District Court for the Northern District of Illinois. The court denied the CBOT’s motion to dismiss as moot in light of its ruling on the transfer motion. Eurex filed a second amended complaint in the Northern District of Illinois in late March 2005. In addition to the allegations in Eurex’s previous complaints, that complaint alleges, among other things, that the CBOT engaged in predatory pricing and, together with the CME, engaged in a campaign to block regulatory approval of the Eurex proposed Global Clearing Link between The Clearing Corporation, Eurex’s U.S. clearing house in Chicago, and Eurex Clearing in Frankfurt. Eurex seeks treble damages under the antitrust laws in an amount to be proven at trial, injunctive relief enjoining the alleged antitrust violations and compensatory and punitive damages for alleged tortious interference with prospective business opportunities. On June 6, 2005, the CBOT and CME filed a joint motion to dismiss the second amended complaint, which the court denied on August 22, 2005. On October 5, 2005, the CBOT filed its answer and defenses to the second amended complaint.

CBOT Holdings is also subject to various other legal actions arising in the normal course of business. CBOT Holdings’ management believes that the ultimate outcome of these proceedings will not have a material adverse effect on CBOT Holdings’ financial position, although an adverse determination could be material to CBOT Holdings’ results of operations or cash flows in any particular period.

11. OPERATING SEGMENTS

Management has identified two reportable operating segments: exchange trading and real estate operations. The exchange trading segment primarily consists of revenue and expenses from both open-auction trading activities and electronic trading activities, as well as from the sale of related market data to vendors. The real estate operations segment consists of revenue and expenses from renting and managing the real estate owned by CBOT Holdings. CBOT Holdings allocates certain indirect expenses to each operating segment. CBOT Holdings derives revenues from foreign based customers but it is not practicable to calculate the amount of such revenues.

-CBOT 10Holdings evaluates operating segment performance based on revenues and income from operations. Inter-company transactions between segments have been eliminated. The accounting principles used for segment reporting are the same as those used for consolidated financial reporting. A summary by operating segment follows for the six and three months ended June 30, 2006 and 2005 (in thousands):


	Six Months Ended June 30, 2006									Six Months Ended June 30, 2005
	Exchange Trading		Real Estate Operations		Eliminations			Totals		Exchange Trading		Real Estate Operations			Eliminations			Totals
Revenues:
Exchange fees	$	174,975						$	174,975	$	136,175							$	136,175
Clearing fees		48,597							48,597		43,836								43,836
Market data		49,929							49,929		36,828								36,828
Building				11,415					11,415				11,087						11,087
CBOT space rent				13,217		(13,217	)		—				13,094			(13,094	)		—
Services		8,535							8,535		7,214								7,214
Interest		7,846							7,846		1,415								1,415
Other		758							758		489								489

Total revenues	$	290,640	$	24,632	$	(13,217	)	$	302,055	$	225,957	$	24,181		$	(13,094	)	$	237,044

Depreciation and amortization	$	21,112	$	7,763				$	28,875	$	20,696	$	7,349					$	28,045

Income from operations	$	130,646	$	700				$	131,346	$	70,031	$	(313	)				$	69,718

Total assets	$	556,313	$	186,021				$	742,334	$	309,471	$	186,015					$	495,486

Capital expenditures	$	4,352	$	6,501				$	10,853	$	12,515	$	7,119					$	19,634

CBOT Holdings evaluates operating segment performance based on revenues and income from operations. Inter-company transactions between segments have been eliminated. The accounting principles used for segment reporting are the same as those used for consolidated financial reporting. A summary by operating segment follows for the quarters ended March 31, 2006 and 2005 (in thousands):

	Three Months Ended March 31, 2006
	Exchange Trading		RealEstate Operations			Eliminations			Totals
Revenues:
Exchange fees	$	83,120							$	83,120
Clearing fees		23,231								23,231
Market data		23,643								23,643
Building				5,505						5,505
CBOT space rent				6,608			(6,608	)		—
Services		4,236								4,236
Interest		3,483								3,483
Other		351								351
Total revenues	$	138,064	$	12,113		$	(6,608	)	$	143,569
Depreciation and amortization	$	10,225	$	3,861					$	14,086
Income from operations	$	58,749	$	(225	)				$	58,524
Total assets	$	545,480	$	184,812					$	730,292
Capital expenditures	$	1,953	$	2,242					$	4,195

	Three Months Ended March 31, 2005
	ExchangeTrading		RealEstateOperations		Eliminations			Totals
Revenues:
Exchange fees	$	66,518						$	66,518
Clearing fees		21,277							21,277
Market data		18,522							18,522
Building				5,608					5,608
CBOT space rent				6,547		(6,547	)		—
Services		3,591							3,591
Interest		714							714
Other		227							227
Total revenues	$	110,849	$	12,155	$	(6,547	)	$	116,457
Depreciation and amortization	$	10,192	$	3,622				$	13,814
Income from operations	$	35,892	$	96				$	35,988
Total assets	$	293,131	$	183,106				$	476,237
Capital expenditures	$	4,190	$	742				$	4,932

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	Three Months Ended June 30, 2006									Three Months Ended June 30, 2005
	Exchange Trading		Real Estate Operations		Eliminations			Totals		Exchange Trading		Real Estate Operations			Eliminations			Totals
Revenues:
Exchange fees	$	91,855						$	91,855	$	69,657							$	69,657
Clearing fees		25,366							25,366		22,559								22,559
Market data		26,286							26,286		18,306								18,306
Building				5,910					5,910				5,479						5,479
CBOT space rent				6,609		(6,609	)		—				6,547			(6,547	)		—
Services		4,299							4,299		3,623								3,623
Interest		4,363							4,363		701								701
Other		407							407		262								262

Total revenues	$	152,576	$	12,519	$	(6,609	)	$	158,486	$	115,108	$	12,026		$	(6,547	)	$	120,587

Depreciation and amortization	$	10,887	$	3,902				$	14,789	$	10,504	$	3,727					$	14,231

Income from operations	$	71,897	$	925				$	72,822	$	34,139	$	(409	)				$	33,730

Total assets	$	556,313	$	186,021				$	742,334	$	309,471	$	186,015					$	495,486

Capital expenditures	$	2,399	$	4,259				$	6,658	$	8,325	$	6,377					$	14,702

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

Through our exchange subsidiary, the Board of Trade of the City of Chicago, Inc. (the “CBOT”), we operate a marketplace for the trading of interest rate, agricultural, equity index and metals, energy and other futures contracts, as well as options on futures contracts. We offer side-by-side trading of many of our products across both electronic and open-auction trading platforms with leading technology infrastructure,. ~~which~~We we believe this hybrid model provides unique trading opportunities by offering deep liquidity coupled with transparency that affords all market participants the ability to compete openly for outstanding orders. Our agricultural products are currently traded during the normal trading day on our open-auction platform and after hours on our electronic trading platform. WeHowever, on August 1, 2006, we expect our agricultural futures products to begin trading on our electronic trading platform ~~during~~, ~~the~~side-by-side ~~day~~with ~~beginning~~our ~~August~~open-auction 1,platform. ~~2006~~See below - Business and Industry Developments.

Our market participants include many of the world’s largest banks, investment firms and commodities producers and users. Other market users include financial institutions, such as public and private pension funds, mutual funds, hedge funds and other managed funds, insurance companies, corporations, commercial banks, professional independent traders and retail customers.

We derive a substantial portion of our revenue from exchange fees and clearing fees directly related to the trading in our markets, which accounted for 58% and 16%, respectively, of our total revenue in the first ~~quarter~~six months of 2006. In addition, we derive revenue from the sale of market data indirectly related to trading in our markets, which accounted for 1617% of our total revenue in the first ~~quarter~~six months of 2006. We also own and operate three office buildings in the City of Chicago, which accounted for 4% of our total revenue in the ~~first~~second quarter of 2006.

Our long-term goal is to enhance stockholder value by increasing the volume of contracts traded on our markets and increasing our operating margin. To increase volume we seek to develop and promote contracts designed to satisfy the evolving trading, hedging and risk management needs of market participants worldwide, and to increase our share of the global derivatives market. We also seek to introduce new technology and functionality to enhance the distribution, accessibility, liquidity and usability of our products. To increase our operating margin, our goal is to control baseline expenses, increase contract volume on existing benchmark products, develop new products and expand the use of market data and other services.

Our revenue in the ~~first~~second quarter of 2006 grew 2331% versus the ~~first~~second quarter of 2005, our operating margin grew from 3128% to 4146% and our net income increased 138%. For the six months ended June 30, 2006, our revenue grew 27% from the same period of 2005, our operating margin grew from 29% to 43% and our net income increased 69101%. These results were due in part to an increase in trading volume of 1113% for the second quarter and 12% for the first six months of 2006 and increases in exchange fee rates and market data fees implemented in October 2005 and January 2006, respectively,. ~~combined~~In ~~with~~contrast, ~~minimal~~our operating ~~expense~~expenses ~~growth~~only ofgrew 62% during the six months ended June 30, 2006 versus the prior year and decreased 1% in the second quarter of 2006 versus the second quarter of 2005. This relatively unchanged level of operating expenses allowed the revenue increases to fall directly to operating income which accounted for the increases in operating margin and net income.

The following is a summary discussion of certain aspects of our business that are important to understanding our financial condition, results of operations and cash flows:

Exchange Fees

Our largest source of operating revenue is exchange fee revenue. Exchange fee revenue is a function of three variables: (1) exchange fee rates~~, determined for the most part by contract type, trading venue and membership/customer status~~; (2) trading volume; and (3) transaction mix between contract type, trading venue and membership/customer status. Because our exchange fee rates are assessed on a per transaction basis, our exchange fee revenue is directly correlated to the volume of contracts traded on our markets. ~~While~~Our exchange fee rates, ~~are~~which ~~established~~vary by uscontract type, trading ~~volume~~venue and ~~transaction~~ ~~mix~~membership/customer status, are ~~primarily~~available ~~influenced~~on ~~by factors outside~~ our ~~control.~~website ~~These~~at ~~external factors include: price volatility in the underlying commodities or equities, interest rate or inflation volatility, changes in U.S. government monetary or fiscal~~ ~~policies, agricultural or trade policies, weather conditions in relation to agricultural commodities, and national and international economic and political conditions.~~

- 1213 -

www.cbot.com. While exchange fee rates are established by us, trading volume and transaction mix are primarily influenced by factors outside our control. Some of these external factors include: price volatility in the underlying commodities or equities, interest rate or inflation volatility, changes in U.S. government monetary or fiscal policies, agricultural or trade policies, weather conditions in relation to agricultural commodities, and national and international economic and political conditions.

The following chart summarizes trading volume by product category, as well as the portion of total trading volume executed on our electronic trading platform, e-cbot^® powered by LIFFE Connect^®. The table also includes total trading fees, average rate per contract, total volume-based expenses and average volume-based expense per contract (in thousands, except per contract rates):

	Three Months Ended March 31,
Trading Volume	Six Months Ended June 30,													Three Months Ended June 30,
	2006				2005				Change			%Change		2006				2005				Change			%Change
Trading Volume	Total		% ofTotal		Total		% ofTotal		VolumeChange			% Change
	Total		% ofTotal		Total		% ofTotal							Total		% ofTotal		Total		% ofTotal
Interest Rate		~~158~~321,~~752~~818	8280	%		~~143~~295,~~730~~264	8382	%		1526,~~022~~554		109	%		163,066	78	%		151,534	82	%		11,532		8	%
Agriculture		2558,~~529~~842	1315	%		2248,~~779~~610	1314	%		210,~~750~~232		1221	%		33,313	16	%		25,831	14	%		7,482		29	%
Equity Index		715,~~025~~259	4	%		613,~~378~~720	4	%		~~647~~1,539		1011	%		8,234	4	%		7,343	4	%		891		12	%
Metals, Energy & Other		14,~~376~~782	1	%		~~214~~407	0	%		14,~~162~~375		~~543~~1075	%		3,407	2	%		192	0	%		3,215		1674	%
Total		~~192~~400,~~682~~701	100	%		~~173~~358,~~101~~001	100	%		1942,~~581~~700		1112	%		208,020	100	%		184,900	100	%		23,120		13	%
e-cbot Volume		~~132~~272,~~196~~072	6968	%		~~108~~226,~~079~~057	6263	%		2446,~~117~~015		2220	%		139,876	67	%		117,978	64	%		21,898		19	%
Trading Fees (1)	$	~~106~~223,~~351~~572			$	87180,~~795~~011			$	1843,~~556~~561		2124	%	$	117,221			$	92,216			$	25,005		27	%
Average Rate per Contract (2)	$	0.~~552~~558			$	0.~~507~~503			$	0.~~045~~055		911	%	$	0.564			$	0.499			$	0.065		13	%
Volume-based expenses (3)	$	1941,~~761~~165			$	1837,~~141~~299			$	13,~~620~~866		910	%	$	21,404			$	19,158			$	2,246		12	%
Volume-based expenses per Contract (4)	$	0.103			$	0.~~105~~104			$	(0.~~002~~001	)	-21	%	$	0.103			$	0.104			$	(0.001	)	-1	%

(1)	Comprised of total exchange and clearing fee revenue.

(2)	Represents total trading fees divided by total reported trading volume.

(3)	Comprised of clearing services and contracted license fees.

(4)	Represents volume-based expense divided by total reported trading volume.

Volume Growth

~~Trading~~Aggregate trading volume growth in ~~the first quarter of~~ 2006 was largely attributable to growth in trading volume of our interest rate products. Interest rate products represent our largest product group and primarily consist of our U.S. Treasury complex, which includes contracts on 30-year U.S. Treasury bonds, 10-, 5-, and 2-year Treasury notes, as well as 30-Day Federal Funds. Agricultural trading volume exhibited a larger growth rate than that in our interest rate product group, although the total additional agricultural volume represents a smaller proportion of our total product mix. All of our other product groups also contributed modestly to trading volume growth in ~~the first quarter of~~ 2006.

Some factors that we believe affected trading volume growth in contracts on U.S. Treasury securities include expanded distribution of direct connections to e-cbot, increased educational programs on our U.S. Treasury complex and ~~new~~ volume-driving market making programs on e-cbot for certain U.S. Treasury contracts. The growth in trading volume in our agriculture products we believe was due in part to growth in the use of commodities as an asset investment category. Our equity index growth we believe is due to marketing efforts around those products as well as from liquidity provided by electronic market makers. Our growth in metals volume ~~was~~we ~~primarily~~believe was driven byamong ~~temporary~~other ~~fee~~things ~~waivers~~by ~~initiated~~volatility onin ~~March 1,~~the ~~2006~~underlying ~~for~~contracts, ~~membership~~our ~~trading~~marketing inefforts ~~gold~~ and ~~silver~~increased ~~contracts~~liquidity in anour ~~effort to stimulate growth in the complex~~marketplace.

- 14 -

Clearing Fees

We provide clearing services for our products via the CME/CBOT Common Clearing Link. Under the terms of our arrangement with the CME, we receive clearing fees in respect of each side of a trade made either on our electronic trading or open-auction platforms that is cleared through the CME/CBOT Common Clearing Link. The aggregate amount of clearing fees received by us is based upon contract trading volume in our products and, therefore, will fluctuate based on the same factors that affect our trading volume.

- 13 -

Market Data

We derive additional revenue from the sale of market data generated by trading in our markets. Because we are the principal market for our products, our price information has value as a key indicator of the financial and agricultural markets. To some extent, revenues from the sales of our market data are also dependent upon volume, as well as our ability to remain a principal market and to respond to innovations in technology that may affect the availability, reliability and price of market data.

Building Revenues

We rent commercial space in the buildings that we own. These revenues are generally affected by market rental rates, lease renewals and business conditions in the financial services industry in which most of our tenants operate. Building expenses are dependent on variable utility costs, cleaning expenses, real estate taxes and other general operating costs.

Service Revenues

We derive revenue from the provision of various services to our trading community in relation to their trading activities. These consist of telecommunication and connectivity services to allow access to our trading platforms, as well as general services such as trading floor amenities and trader documentation and security authorization.

Interest Income

We invest available cash in short-term U.S. Treasury securities, as well as other highly liquid, short-term investments. Interest income fluctuates based upon levels of excess cash and prevailing market interest rates.

Operating Expenses

Our expenses are generally incurred to support our electronic trading and open-auction platforms, and to a lesser extent, our building operations. We consider some of our expenses to be volume-based, meaning they are primarily based on trading volume levels and will therefore vary directly with trading activity. Others we consider to be baseline expenses, meaning they are generally fixed and independent of trading volume. Volume-based expenses include clearing services and license fees. Baseline expenses include salaries and benefits, depreciation and amortization, information technology, professional services, general and administrative expenses, building operating costs, program expenses and interest expense. Finally, we incur some expenses that we do not consider to be volume-based or baseline expenses. These expenses include items such as asset impairments, litigation settlements and severance-related charges.

Segments

We have identified two reportable operating segments: exchange trading and real estate operations. The exchange trading segment primarily consists of revenue and expenses from both the electronic and open-auction trading platforms, as well as from the sale of related market data to vendors and from clearing fees. The real estate ~~operations segment consists of~~ revenue and expenses from renting and managing our real estate. We allocate indirect expenses to each operating segment. The revenue and income attributable to the real estate operations segment is a small percent of total revenues and income. We identify real estate operations as a reportable segment primarily due to the amount of assets attributable to real estate operations, which consist of owned building space in the City of Chicago. The following discussion of the results of operations primarily focuses on the exchange trading segment, with discussion of the real estate operations being made only when it is significant.

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operations segment consists of revenue and expenses from renting and managing our real estate. We allocate indirect expenses to each operating segment. The revenue and income attributable to the real estate operations segment is a small percent of total revenues and income. We identify real estate operations as a reportable segment primarily due to the amount of assets attributable to real estate operations, which consist of owned building space in the City of Chicago. The following discussion of the results of operations primarily focuses on the exchange trading segment, with discussion of the real estate operations being made only when it is significant.

Business and Industry Developments

Agricultural Futures Side-by-Side Trading

On August 1, 2006, during our daytime trading hours, we expect to begin offering our agricultural futures products on our electronic trading platform e-cbot side-by-side with our open-auction platform. We expect this additional daytime access to our agricultural futures products will attract new users from around the world and improve customer service to our existing users.

Joint Asian Derivatives Exchange “JADE”

On September 25, 2006, on our electronic trading platform e-cbot, we plan to begin hosting the Joint Asian Derivatives Exchange or “JADE”, a joint venture with the Singapore Exchange. Initially, JADE will trade futures contracts on TSR 20 Rubber, and we expect JADE will begin trading futures contracts on crude palm oil by the fourth quarter of 2006.

Swap Future Contracts

Citigroup and Goldman Sachs & Co. became electronic market makers for our Interest Rate Swap futures contracts in July of 2006 joining the existing electronic market maker. We expect the addition of Citigroup and Goldman Sachs as market makers will provide increased liquidity to all market participants in CBOT 5-year and 10-year Swap futures.

Consolidation

In June 2006, NYSE Group, Inc., the owner and operator of the New York Stock Exchange, entered into a definitive agreement to merge with Euronext NV, the owner and operator of four European stock exchanges and one European futures exchange, Euronext.liffe. This transaction, if consummated, would permit NYSE Group to enter into the futures industry. Currently, we cannot predict the potential impact of this transaction, if any, on our industry in general, or specifically to our business or future results of operations.

Results of Operations

~~Three~~Six and three months ended ~~March~~June 3130, 2006 compared towith six and three months ended ~~March~~June 3130, 2005

Net Income

Net income for the ~~first~~six ~~quarter~~months ofended June 30, 2006 was $3578.16 million, 69$39.5 million or 101%, higher than net income for the first ~~quarter~~six months of 2005. This growth was primarily athe after-tax result of aincreased revenues of $2765.10 million ~~increase~~ in ~~revenues in~~ the first ~~quarter~~six months of 2006 ~~and~~accompanied by ~~baseline~~modest ~~expenses~~2% ~~growing~~operating atexpense agrowth ~~slower~~of ~~rate~~$3.4 ~~than revenue during the first quarter~~million.

-Net 14income for the second quarter of 2006 was $43.5 million, $25.2 million or 138%, higher than net income for the second quarter of 2005. This growth was also primarily driven by the after-tax result of increased revenues, with second quarter 2006 revenues outpacing second quarter 2005 revenues by $37.9 million.

Revenues

Revenues for the ~~first~~six ~~quarter~~months ofended June 30, 2006 increased ~~23%, or~~ $2765.10 million, to $~~143~~302.61 million compared towith the first ~~quarter~~six months of 2005. The increase in revenues in the ~~first~~current ~~quarter~~year ~~of 2006~~ was primarily due to an increase in the average rate per contract traded, which accounted for $822.6 1 million of the increase, higher trading volumes, which accounted for $921.95 million of the increase,. ~~and~~Market ~~price~~data ~~increases~~revenues ~~for~~also ~~market~~contributed ~~data~~to inour ~~January~~revenues ~~2006,~~with ~~which~~a ~~accounted for~~ $510.17 ~~million of the increase.~~

- 16 -

million increase resulting from a price increase for market data in January 2006, as well as a $2.6 million benefit realized from an adjustment that resulted from customer account reviews. Additionally, interest income increased $6.4 million, primarily due to higher invested cash balances and increasing interest rates.

Revenues for the second quarter of 2006 increased $37.9 million to $158.5 million compared with the second quarter of 2005. The increase in revenues in the second quarter of 2006 was primarily due to an increase in the average rate per contract traded, which accounted for $13.5 million of the increase, higher trading volumes, which accounted for $11.5 million of the increase, price increases for market data, which accounted for $5.4 million of the increase, the $2.6 million market data customer review adjustments, and additional interest income of $3.7 million.

The following chart provides revenues by source (in thousands):

	Three Months Ended March 31,
	Six Months Ended June 30,						Three Months Ended June 30,
	2006		2005		% Change		2006		2005		% Change
Exchange fees	$	83174,~~120~~975	$	66136,~~518~~175	2528	%	$	91,855	$	69,657	32	%
Clearing fees		2348,~~231~~597		2143,~~277~~836	911	%		25,366		22,559	12	%
Trading fees		~~106~~223,~~351~~572		87180,~~795~~011	2124	%		117,221		92,216	27	%
Market data		2349,~~643~~929		1836,~~522~~828	2836	%		26,286		18,306	44	%
Building		511,~~505~~415		511,~~608~~087	-23	%		5,910		5,479	8	%
Services		48,~~236~~535		37,~~591~~214	18	%		4,299		3,623	19	%
Interest		37,~~483~~846		~~714~~1,415	~~388~~454	%		4,363		701	522	%
Other		~~351~~758		~~227~~489	55	%		407		262	55	%
Total revenues	$	~~143~~302,~~569~~055	$	~~116~~237,~~457~~044	2327	%	$	158,486	$	120,587	31	%
The following table provides trading fees, which include exchange fees and clearing fees, per reported contract traded at the product and platform levels:
	Three Months Ended March 31,
	2006		2005		% Change
Interest rate	$	0.517	$	0.482	7	%
Agriculture	$	0.673	$	0.641	5	%
Equity index	$	0.760	$	0.578	31	%
Metals, energy & other	$	1.312	$	0.855	53	%
Overall average rate per contract	$	0.552	$	0.507	9	%
e-cbot	$	0.495	$	0.400	24	%
Open-auction	$	0.515	$	0.491	5	%
Off-exchange	$	2.296	$	2.131	8	%
Overall average rate per contract	$	0.552	$	0.507	9	%

The ~~average~~following ~~rate~~table ~~per~~provides ~~contract~~trading ~~traded~~fees, which isinclude ~~total~~exchange ~~trading~~ fees ~~divided~~and byclearing ~~total reported trading volume~~fees, ~~for the first quarter of 2006 was $0.552, 9% higher than the $0.507 average rate~~ per reported contract traded inat the ~~first~~product ~~quarter~~and ofplatform ~~2005.~~levels: ~~The average rate per contract traded increased in the current year primarily due to exchange fee increases initiated in October 2005 mainly for U.S. Treasury products traded on e-cbot.~~

Operating Income


	Six Months Ended June 30,						Three Months Ended June 30,
	2006		2005		% Change		2006		2005		% Change
Interest Rate	$	0.520	$	0.474	10	%	$	0.523	$	0.467	12	%
Agriculture	$	0.677	$	0.642	5	%	$	0.680	$	0.643	6	%
Equity Index	$	0.734	$	0.606	21	%	$	0.712	$	0.630	13	%
Metals, Energy & Other	$	1.080	$	1.071	1	%	$	0.986	$	1.312	-25	%

Total	$	0.558	$	0.503	11	%	$	0.564	$	0.499	13	%
e-cbot	$	0.499	$	0.399	25	%	$	0.503	$	0.397	27	%
open-auction	$	0.515	$	0.487	6	%	$	0.515	$	0.483	7	%
off-exchange	$	2.434	$	2.259	8	%	$	2.564	$	2.404	7	%

~~Income~~The ~~from~~average ~~operations~~rate ~~increased~~per ~~63%~~contract traded, orwhich is total trading fees divided by total reported trading volume, for the six months ended June 30, 2006 was $220.~~5 million~~558, 11% higher than the $0.503 average rate per contract traded in the first half of 2005. The average rate per contract traded for the second quarter of 2006 ~~compared~~was to$0.564, 13% higher than the ~~first~~$0.499 average rate per contract traded in the second quarter of 2005. ~~Operating~~The ~~income~~average ~~from~~rate ~~the exchange~~per ~~trading~~contract ~~segment~~traded increased ~~$22.9~~in ~~million~~the ~~from~~three and six month periods of the ~~prior~~current year, ~~whereas~~primarily ~~operating~~due ~~income~~to ~~from~~exchange ~~the~~fee ~~real~~increases ~~estate~~initiated ~~operations~~in ~~segment~~October ~~decreased~~2005 mainly $0for U.3S. ~~million~~Treasury toproducts atraded ~~loss~~on ~~of $0~~e-cbot.2 ~~million~~Additionally, we have announced exchange fee increases on certain contracts effective in the ~~first~~third quarter of 2006 which we estimate will increase future average rate per contract by an additional 5% to 8% assuming similar transaction mix.

- 1517 -

~~The~~Operating ~~exchange~~Income trading segment increase in the first quarter of 2006 was largely the result of increases in exchange fee rates, trading volume and market data prices, partially offset by moderate baseline expense growth. The real estate operations segment decrease was primarily the result of a $0.1 million decrease in building lease revenues.

Income from operations increased 88%, or $61.6 million, in the first six months of 2006 compared with the prior year. Operating income from the exchange trading segment increased $60.6 million from the prior year, and operating income from the real estate operations segment increased $1.0 million from a loss of $0.3 million in the first half of 2005.

Income from operations increased 116%, or $39.1 million, in the second quarter of 2006 compared with the second quarter of 2005. Operating income from the exchange trading segment increased $37.8 million from the prior year, and operating income from the real estate operations segment increased $1.3 million from a loss of $0.4 million in the second quarter of 2005.

The exchange trading segment increases in both the year-to-date and quarter periods of 2006 were largely the result of increases in exchange fee rates, trading volume and market data prices, partially offset by moderate baseline expense growth. The real estate operations segment increases were primarily the result of modest increases in building lease revenues coupled with slightly lower building overhead costs.

Expenses

Operating expenses increased 62% in the ~~first~~ ~~quarter~~six ofmonths ended June 30, 2006 compared towith the ~~first~~same ~~quarter~~period of 2005. Operating expenses as a percent of total revenues decreased from 6971% in the first ~~quarter~~half of 2005 to 5957% in the first ~~quarter~~half of 2006, resulting in an operating margin of 4143% in the first ~~quarter~~ half of 2006 compared towith 3129% in the first ~~quarter~~half of 2005. ~~Our 2006 revenue growth was primarily driven by increased exchange fees, increased trading volume and increased market data fees. Our operating margin increased in the first quarter of~~ 2006 because our operating expenses grew at a lesser rate than revenues because these 2006 revenue growth drivers only marginally increased expenses. The increase in trading volume led to a 9% increase in our volume-based expenses. These expenses, however, only constituted 23% of total operating expenses in the first quarter of 2006. The increase in exchange fees and market data fees had no direct effect on operating expenses.

~~The~~Operating ~~following~~expenses ~~chart~~decreased ~~illustrates~~1% ~~operating~~in ~~expenses~~the ~~and~~second ~~income~~quarter ~~from~~of ~~operations~~2006 incompared ~~total~~with ~~and~~the second quarter of 2005. Operating expenses as a percent of total revenues (decreased from 72% in ~~thousands):~~the second quarter of 2005 to 54% in the second quarter of 2006, resulting in an operating margin of 46% in the second quarter of 2006 compared with 28% in the second quarter of 2005.

	Three Months Ended March 31,
	2006			2005			% Change
Total revenues	$	143,569		$	116,457		23	%
Expenses:
Clearing services		18,023			16,516		9	%
Contracted license fees		1,738			1,625		7	%
Volume-based expenses		19,761			18,141		9	%
Salaries and benefits		19,102			18,633		3	%
Depreciation and amortization		14,086			13,814		2	%
Professional services		3,939			4,592		-14	%
General and administrative expenses		5,076			4,922		3	%
Building operating costs		6,603			6,638		-1	%
Information technology services		12,230			10,677		15	%
Programs		2,627			2,016		30	%
Interest		585			922		-37	%
Baseline expenses		64,248			62,214		3	%
Severance and related costs		1,036			114		809	%
Other expenses		1,036			114		809	%
Operating expenses		85,045			80,469		6	%
Income from operations	$	58,524		$	35,988		63	%
	As a % of Revenue
Volume-based expenses		14	%		16	%
Baseline expenses		45	%		53	%
Other expenses		1	%		0	%
Operating expenses		59	%		69	%
Operating Margin		41	%		31	%

Our 2006 year-to-date and second quarter revenue growth was primarily driven by increased exchange fees, increased trading volume and increased market data fees. Our operating margins increased in the year-to-date and quarter periods because our operating expenses were relatively unchanged. Our operating expense levels were able to be maintained because our revenue growth drivers only marginally increased expenses. For instance, the increases in trading volume led to a 10% and 12% increase in our volume-based expenses in the year-to-date and quarter periods, respectively. Volume-based expenses, however, only constituted approximately 25% of total operating expenses in each period. The other revenue growth drivers, increased exchange fees and market data fees, had no direct effect on operating expenses.

- 1618 -

The following chart illustrates operating expenses and income from operations in total and as a percent of total revenues (in thousands):


	Six Months Ended June 30,								Three Months Ended June 30,
	2006			2005			% Change		2006			2005			% Change
Total revenues	$	302,055		$	237,044		27	%	$	158,486		$	120,587		31	%
Expenses:
Clearing services		37,513			33,894		11	%		19,490			17,378		12	%
Contracted license fees		3,652			3,405		7	%		1,914			1,780		8	%

Volume-based expenses		41,165			37,299		10	%		21,404			19,158		12	%
Salaries and benefits		38,130			36,535		4	%		19,028			17,902		6	%
Depreciation and amortization		28,875			28,045		3	%		14,789			14,231		4	%
Professional services		8,497			9,150		-7	%		4,558			4,558		0	%
General and administrative expenses		9,622			10,089		-5	%		4,546			5,167		-12	%
Building operating costs		12,605			13,152		-4	%		6,002			6,514		-8	%
Information technology services		24,115			22,069		9	%		11,885			11,392		4	%
Programs		5,713			5,105		12	%		3,086			3,089		0	%
Interest		973			1,718		-43	%		388			796		-51	%

Baseline expenses		128,530			125,863		2	%		64,282			63,649		1	%
Litigation		—			4,000		n/a			—			4,000		—
Severance and related costs		1,014			164		518	%		(22	)		50		-144	%

Other expenses		1,014			4,164		-76	%		(22	)		4,050		-101	%
Operating expenses		170,709			167,326		2	%		85,664			86,857		-1	%

Income from operations	$	131,346		$	69,718		88	%	$	72,822		$	33,730		116	%


	As a % of Revenues								As a % of Revenues
Volume-based expenses		14	%		16	%				14	%		16	%
Baseline expenses		43	%		53	%				41	%		53	%
Other expenses		0	%		2	%				0	%		3	%

Operating expenses		57	%		71	%				54	%		72	%

Operating Margin		43	%		29	%				46	%		28	%

Volume-based Expenses

Volume-based expenses increased $13.69 million, or 910%, in the first ~~quarter~~half of 2006, ~~versus~~and $2.2 million, or 12%, in the ~~first~~second quarter of ~~2005~~2006 versus the same prior year periods. Since these expenses are tied to our trading volume, we expect increases in volume-based expenses during periods of trading volume growth like we experienced in both the ~~first~~year-to-date and quarter ~~of 2006~~periods. The average volume-based expense per contract was generally consistent between the periods at $0.103 and $0.~~105~~104 per contract in the ~~first quarters of~~ 2006 and 2005 periods, respectively.

Baseline Expenses

Baseline expenses increased $2.07 million, or 32%, in the first ~~quarter~~half of 2006 ~~versus~~and fell to 43% of total revenues from 53% of total revenues in the first ~~quarter~~ half of 2005. InBaseline expenses increased $0.6 million, or 1% in the ~~first~~second quarter of 2006, ~~these~~and ~~expenses~~were ~~decreased to 45~~41% of total revenues ~~from~~versus 53% of total revenues in the ~~first~~second quarter of 2005. Within baseline expenses for the year-to-date period, information technology services expense increased ~~15%~~$2.0 ~~and~~million ~~professional~~year-to-date ~~services~~and ~~expense~~$0.5 ~~decreased~~million ~~14%~~ in the ~~first~~second quarter ofand ~~2006~~salaries ~~versus~~and ~~the~~benefits ~~prior~~increased $1.6 million year-to-date and $1.1 ~~Also,~~million ~~baseline~~in the second quarter. Baseline expenses in the first ~~quarter~~half of 2006 included $0.47 million of non-cash, stock-based compensation expense for stock grants made to our board of directors and $0.9 million of stock-based compensation for employee stock awards. The director stock compensation, which is included in professional services, was all recorded during the second quarter, while $0.5 million of the year-to-date employee stock-based compensation was recorded during the second quarter and is included in salaries and benefits. There was no stock-based compensation expense in the prior year periods.

~~Information~~- ~~technology~~19 ~~services expense~~- increased $1.6 million to $12.2 million in the first quarter of 2006. The increase was primarily the result of $1.1 million of increased maintenance charges for our hardware and software systems on the technology supporting our trading platforms. Also, costs associated with connections to our electronic trading system increased $0.5 million as we continued to add more customers to our electronic trading platform.

ProfessionalTable services expense decreased $0.7 million to $3.9 million in the first quarter of 2006. This decrease was primarily due to a decrease of $1.4 million in costs for consultants and programmers primarily used for modifications to our various trading technologies. Also, the first quarter of 2005 included $1.4 million of restructuring charges related to our demutualization process. While we did not have restructuring charges in the first quarter of 2006, we did incur $1.7 million of additional legal fees and $0.4 million of additional board of director charges in the current year. Contents

The increases in information technology services expense were primarily the result of increased maintenance charges for our hardware and software systems on the technology supporting our trading platforms. Such costs increased $2.3 million in the year-to-date period and $1.2 million in the second quarter.

The salary and benefits increases were the result of increased incentive pay accruals, higher health care costs and the stock-based compensation discussed above. These increases were offset to a degree by lower salary costs. Accrued incentives were $0.9 million and $0.6 million higher in the year-to-date and quarter periods, respectively, as a result of incentive programs tied to financial performance of the company. Health care costs increased $0.5 million and $0.2 million in the year-to-date and quarter periods, respectively, due to an increased level of medical claims under our self-funded health insurance policies. Salary costs decreased $2.1 million and $1.1 million in the year-to-date and quarter periods, respectively, as a result of a workforce reduction related to a realignment of our technology resources completed at the end of 2005.

Other Expenses

In the first quarter of 2006, we increased an accrual for severance costs by $1.0 million related to a retirement agreement entered into in March 2006 with our former general counsel. We expect that the majority of this accrual will be paid in 2006. In the second quarter of 2005, we recognized litigation settlement expense of $4.0 million which represented the payments made to plaintiffs’ lawyers in an agreement made to settle a lawsuit brought by certain members of the CBOT relating to the proposed allocation of equity in our restructuring to a for-profit, stock company. No further payments by the CBOT are required under the settlement agreement.

Income Taxes

The effective income tax rate for both the ~~first~~ six months and quarter ofended June 30, 2006 ~~and~~was 40%. The effective income tax rate for the ~~first~~six months and quarter ofended June 30, 2005 was 4044% and 4246%, respectively. The ~~first~~effective ~~quarter~~tax ~~2005~~rates ~~rate~~in ~~was~~2005 were higher than our 40% combined federal and state statutory tax rate because of the $4.0 million litigation settlement expense which was not deductible for tax purposes. Also, the 2005 year-to-date and second quarter periods included approximately $2.6 million and $1.42 million of costs related to our restructuring process that were not deductible for tax purposes.

Liquidity and Capital Resources

Our operations are the major source of our liquidity. Cash requirements principally consist of operating expenses, scheduled debt repayments, and capital expenditures for technology enhancements and ~~scheduled~~building ~~debt repayments~~improvements.

At ~~March~~June 3130, 2006, cash and cash equivalents were $~~104~~65.89 million versus $101.3 million at December 31, 2005. When combined with short-term investments, which are comprised of U.S. Treasury securities with maturities between 91 days and one year, these current assets totaled $~~358~~393.89 million at ~~March~~June 3130, 2006, a $1752.67 million increase from $341.2 million at December 31, 2005. The increase in cash, cash equivalents and short-term investments during the first ~~quarter~~half of 2006 was primarily the result of $4668.83 million of cash from operations, partially offset by a $~~15.2 million increase in restricted cash, $~~10.7 million of debt repayments and $410.29 million of capital expenditures.

Working capital at ~~March~~ June 3130, 2006 increased $3381.23 million from December 31, 2005 to a balance of $~~339~~388.90 million. The increase in working capital was primarily a result of the increase in cash, cash equivalents and short-term investments, as described above, as well as an increase in accounts receivable of $1722.3 million related to higher revenues in the ~~first~~ second quarter of 2006 compared towith the fourth quarter of 2005.

-Property and equipment, net of accumulated depreciation, was $236.9 million, a $17.8 -million decrease from December 31, 2005. The decrease in property and equipment reflects recorded depreciation of $28.6 million offset by capital acquisitions of $10.9 million. Capital expenditures in 2006 currently are expected to total approximately $30 to $35 million.

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Property and equipment, net of accumulated depreciation, was $244.9 million, a $9.8 million decrease from December 31, 2005. The decrease in property and equipment reflects recorded depreciation of $14.0 million offset by capital acquisitions of $4.2 million. Capital expenditures in 2006 currently are expected to total approximately $42 million.

We anticipate that current cash balances and future funds generated through operations will be sufficient to meet cash requirements for operations, capital expenditures and scheduled debt repayments, currently and for the foreseeable future. If we were to experience a significant reduction in our cash flows from operations, we believe we currently have a variety of options for raising capital for short-term cash needs, such as utilizing our revolving line of credit, reducing short-term investments or making private or public offerings of our securities.

Net Cash Flows From Operating Activities

Net cash provided by operating activities totaled $4668.8 3 million and $2468.40 million for the first ~~quarters~~six months of 2006 and 2005, respectively. Cash provided by operations in 2006 primarily consisted of $3578.16 million of net income adjusted for non-cash items including $1428.19 million of depreciation and amortization, as well as by a $22.3 million increase in accounts receivable, an $8.2 decrease in accounts payable and a $4.8 million decrease in deferred revenues. Cash from operations was relatively flat between the first six months of 2006 and 2005, even though net income increased $39.5 million, due to cash timing differences in relation to receivables, prepaid expenses, payables and accrued expenses.

Net Cash Flows Used in Investing Activities

Net cash used in investing activities totaled $3293.50 million and $144.31 million in the first ~~quarters~~six months of 2006 and 2005, respectively. Cash used for investing in 2006 primarily consisted of $1386.08 million of purchases of short-term investments (net of maturities) ~~as well as $15.2 million of additional restricted cash~~ and capital expenditures of $410.29 million.

Capital Expenditures

Approximately $26.25 million of capital expenditures in the first ~~quarter~~six months of 2006 related to real estate projects for building renovations and tenant space improvements. The balance of capital expenditures in 2006 related primarily to the technology supporting our trading platforms. Capital expenditures in the first ~~quarter~~half of 2006 ~~related~~were $8.8 million less than in 2005 primarily tobecause capital expenditures in the ~~technology~~first ~~supporting~~half of 2005 included an upgrade to our electronic trading ~~platforms~~platform.

Net Cash Flows Used in Financing Activities

Net cash used in investing activities totaled $10.7 million and $10.6 million in the first ~~quarters~~six months of 2006 and 2005, respectively, and primarily related to scheduled debt repayments.

Long-Term and Short-Term Debt

Total debt at ~~March~~June 3130, 2006 was $1920.50 million, comprised of $10.7 million of senior notes and $89.83 million (5.0 million pounds sterling) due to AEMS under a financing agreement, which is denominated in pounds sterling, related to the development of e-cbot in 2003. The final payments on the senior notes, which bear interest at a rate of 6.81%, are due in the first quarter of 2007. The final payments on the financing agreement are due in installments through October 2006. Interest on the financing agreement was prepaid at the time of the borrowing at an effective rate of approximately 5.6%.

Critical Accounting Policies

The preparation of the unaudited consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts in the financial statements. Actual amounts ~~could~~ could differ from those estimates. A summary of the critical accounting policies that we believe are important to understanding our financial results is included in our Annual Report on Form 10-K for the year ended December 31, 2005 under the ~~heading~~ heading “Management’s Discussion and Analysis of Financial ~~Condition and Results of Operations – Critical Accounting Policies” and in the audited financial statements and related notes included in the Form 10-K. There have been no~~ ~~material changes to these critical accounting policies that impacted our reported amounts of assets, liabilities, revenues or expenses during the first quarter of 2006.~~

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Condition and Results of Operations – Critical Accounting Policies” and in the audited financial statements and related notes included in the Form 10-K. There have been no material changes to these critical accounting policies that impacted our reported amounts of assets, liabilities, revenues or expenses during the first six months of 2006.

Forward-Looking Statements

InWe ~~this~~have ~~document,~~included ~~our~~in ~~use~~Parts I ofand ~~the~~II ~~words~~of ~~“may,”~~this ~~“should,”~~Quarterly ~~“could,”~~Report ~~“expects,”~~on ~~“plans~~Form 10-Q,” ~~“anticipates,”~~and ~~“believes,”~~from ~~“estimates,”~~time ~~“predicts,” “potential”~~to ortime ~~“continue”~~our ormanagement ~~other~~may ~~comparable~~make, ~~terminology~~statements iswhich ~~intended~~may toconstitute ~~identify~~ “forward-looking statements” within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. ~~While~~These ~~these~~ forward-looking statements ~~represent~~ ~~our current judgment on what the future may hold, these forward-looking statements~~ are not ~~guarantees~~historical offacts ~~future~~but ~~performance~~instead ~~and~~represent ~~involve~~only ~~certain~~our ~~risks~~belief ~~and~~regarding ~~uncertainties~~future events, ~~including~~many ~~risks~~of ~~associated with intense competition in our industry~~which, ~~our~~ ~~inability~~by totheir ~~successfully execute our electronic trading strategy~~nature, ~~risks~~are ~~associated~~inherently ~~with~~uncertain ~~the~~and ~~globalization~~outside of our ~~business,~~control. ~~risks~~It ~~associated~~is possible ~~with~~that our ~~recent~~actual ~~conversion~~results tomay ~~a for-profit company~~differ, ~~our~~possibly ~~inability to retain current customers or attract new customers~~materially, from the ~~possibility~~anticipated ofresults ~~declines~~indicated in ~~derivatives~~these ~~trading~~forward-looking ~~volume~~statements. ~~generally,~~Important ~~risks~~factors ~~associated~~that ~~with~~could ~~our~~cause ~~dependence~~actual onresults ~~certain~~to ~~third-party~~differ ~~suppliers,~~from ~~regulatory~~those ~~and~~in ~~legal~~forward-looking ~~risks,~~statements include ~~and~~the ~~other~~ risks and uncertainties identified in our reports and other filings ~~that we have~~ made with the SEC, asincluding ~~may~~those bediscussed ~~revised~~under or“Risk ~~supplemented~~Factors” in ~~subsequent filings with the SEC. Therefore~~Part I, ~~actual~~Item 1A ~~outcomes~~of ~~and~~our ~~results~~Annual ~~may~~Report ~~differ~~on ~~materially from what is expressed or implied in any forward~~Form 10-~~looking statements~~K. ~~We undertake no obligation to update or publicly release any revisions to forward-looking statements to reflect events, circumstances or changes in expectations after the date of this report.~~

In some cases, you can identify forward-looking statements with terminology such as “may”, “will”, “should”, “expects”, “intends”, “plans”, “anticipates”, “believes”, “estimates”, “predicts”, “potential”, “continue”, “pending” or the negative of these terms or other comparable terminology. These statements are only predictions. You should not place undue reliance on forward-looking statements which speak only as of the date of this Report. Actual events or results may differ materially and we undertake no on going obligation, other than that imposed by law, to update these statements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

We provide markets for trading futures and options on futures. However, we do not trade futures and options on futures for our own account. We invest available cash in short-term U.S. Treasury securities, as well as other highly liquid, short-term investments. We do not believe there is significant risk associated with these short-term investments. Our long-term debt bears interest at a weighted-average fixed rate of 6.4%. Based on the terms of our existing long-term debt and the terms currently available for similar borrowings, management estimates the fair value of the long-term debt approximates the carrying value.

Foreign Currency Risk

We have arrangements related to the provision of our electronic trading software, which obligate us to make payments denominated in pounds sterling. As a result, we are exposed to movements in foreign currency exchange rates. We engage in foreign currency hedging activities in order to reduce our risk from movements in foreign currency exchange rates where practicable to do so. However, where we are not able to enter into foreign currency hedging transactions on terms satisfactory to us, we retain risk associated with movements in foreign currency exchange rates.

The primary purpose of our foreign currency hedging activities is to manage the volatility associated with foreign currency purchases of materials and services and liabilities created in the normal course of our business. We do not rely on economic hedges to manage risk.

We enter into forward contracts when the timing of the future payment is certain. When the exact foreign currency amount is known, such as under fixed service agreements, we treat this as a firm commitment and identify the hedge instrument as a fair value hedge. When the foreign currency amount is variable, such as under variable service agreements, we treat this as a forecasted transaction and identify the hedge instrument as a cash flow hedge. At the time we enter into a forward contract, the forecasted transaction or firm commitment is identified as the hedged item and the forward contract is identified as the hedge instrument. We measure hedge ineffectiveness using the forward rates for hedges at each reporting period. In all forward contracts, the critical terms of the hedging instrument and the hedged item match. At each reporting period we verify that the critical terms of the contract continue to be the same.

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We currently utilize foreign currency forward contracts that we identified as fair value hedges. These are intended to offset the effect of exchange rate fluctuations on firm commitments for purchases of fixed annual and quarterly services denominated in pounds sterling. These contracts had notional amounts approximating $4038.95 million (2322.96 million pounds sterling) at ~~March~~June 3130, 2006. The fair value of these contracts, which was $03.82 million at ~~March~~June 3130, 2006, is recorded in accounts receivable. Gains and losses on these hedge instruments, as well as the gains and losses on the underlying hedged item, offset each other and were therefore zero in the first ~~quarter~~six months of 2006. There were no gains or losses recorded on these fair value hedges related to hedge ineffectiveness.

We also utilize foreign currency forward contracts that are intended to offset the effect of exchange rate fluctuations on recorded debt that is denominated in pounds sterling. These contracts, which are not designated as hedges under FASB Statement No. 133, had notional amounts approximating $8.6 million (5.0 million pounds sterling) at ~~March~~June 3130, 2006. Gains and losses on these hedge instruments, as well as the gains and losses on revaluing the recorded debt were recognized in general and administrative expense.

ITEM 4. CONTROLS AND PROCEDURES

We maintain a system of disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended) designed to provide reasonable assurance that information we are required to disclose in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified in SEC’s rules and forms.

CBOT Holdings’ management, under the supervision and with the participation of the President and Chief Executive Officer and the Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of ~~March 31,~~the ~~2006~~end of the period covered by this report. Based on this evaluation, the President and Chief Executive Officer and Chief Financial Officer concluded that, ~~as of March 31, 2006,~~ our disclosure controls and procedures were effective at the reasonable assurance level as of the end of the period covered by this report.

There were no changes in our internal control over financial reporting ~~that occurred~~ during ~~the~~our ~~last~~most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

~~For~~We ~~information~~provided a discussion of all material pending litigation matters relating to CBOT ~~legal~~Holdings ~~proceedings~~Inc. in Item 3 of Part I of our Annual Report on Form 10-K for the year ended December 31, ~~see~~2005 ~~Note~~and in our Quarterly Report on Form 10-Q for the three months ended March 31, 2006 filed with the SEC. For the three months ended June 30, 2006, there were no material developments with regard to our previously reported matters and no other matters were reportable during the ~~Unaudited~~period. ~~Consolidated~~In addition to the matters described in our SEC filings, from time to time we are ~~Financial~~involved ~~Statements~~in ~~contained~~various legal proceedings arising in ~~Part~~the Iordinary course of our business. We do not believe, ~~Item 1~~based on currently available information, that the results of ~~this~~any ~~quarterly~~of ~~report~~these proceedings will have a material adverse effect on ~~Form~~our ~~10-Q~~operating results or financial condition.

ITEM 1A. RISK FACTORS

~~Information~~We ~~regarding~~provide a discussion of the risk factors ~~appears~~that inmay affect our business in “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Forward-Looking Statements” in Part I, Item 2 of this Form 10-Q and in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2005. There have been no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K. The risks described in our Annual Report on Form 10-K are not the only risks facing our company however. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may in the future materially adversely affect our business, operating results and/or financial condition.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

~~None~~The 2006 annual meeting of shareholders of CBOT Holdings, Inc. was held on May 2, 2006. Proxies for the Annual Meeting were solicited pursuant to Regulation 14 under the Securities Exchange Act of 1934 and there was no solicitation in opposition to the Company’s nominees for election as directors. All six nominees named in the Company’s proxy statement were elected by the holders of the Company’s Class A common stock to serve as directors for a two-year term expiring in 2008. The matters voted upon at the meeting and the votes cast with respect to such matters are as follows:

Election of Directors


Nominee	Votes For	Votes Withheld
Bernard W. Dan	21,321,320	289,882
Robert F. Corvino	21,354,682	256,520
Jackie Clegg	21,315,364	295,838
Larry G. Gerdes	21,304,379	306,823
Joseph Niciforo	21,016,158	595,044
Michael D. Walter	20,928,593	682,609

In addition to the directors elected by the holders of the Company’s outstanding shares of Class A common stock at the annual meeting, in accordance with the Company’s Certificate of Incorporation, Messrs. John L. Pietrzak, Christopher Stewart and James P. McMillin were elected by the holder of the outstanding share of the Company’s Class B common stock to serve as directors of the Company for a two-year term expiring in 2008. Messrs. Charles P. Carey, John E. Callahan, James E. Cashman, Mark E. Cermak, Brent M. Coan, James A. Donaldson, C.C. Odom, II and Charles M. Wolin also will continue to serve as directors of the Company.

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Ratification of Auditors

Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accountants for the fiscal year ending December 31, 2006


		Votes
For		21,281,065
Against		212,481
Abstain		117,656

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

10.1 Employment Agreement, dated March 23, 2006 between the Registrant and Kevin J.P. O’Hara (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed March 29, 2006)


10.1		First Amendment to Bernard Dan Employment Agreement, dated June 1, 2006 (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed June 7, 2006).

31.1		Certification by CEO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31.2		Certification by CFO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1		Certification by CEO and CFO Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

~~10.2~~- ~~Retirement~~25 Agreement, dated March 6, 2006, by and among the Registrant, Board of Trade of the City of Chicago, Inc. and Carol A. Burke (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K ~~filed March 7, 2006)~~

10.3 Director Compensation Policy (incorporated by reference to Exhibit 99.1 of the Registrant’s Current Report on Form 8-K filed February 22, 2006)

10.4 Letter relating to the employment of Christopher Malo, dated February 8, 2005, from Board of Trade of the City of Chicago, Inc. to Christopher Malo

31.1 Certification by CEO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

31.2 Certification by CFO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1 Certification by CEO and CFO Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, CBOT Holdings, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		CBOT HOLDINGS, INC.
		/s/ Bernard W. Dan
Date: April 28, 2006		Bernard W. Dan
Date: July 31, 2006		Bernard W. Dan
		President and Chief Executive Officer
		/s/ Glen M. Johnson
Date: April 28, 2006		Glen M. Johnson
Date: July 31, 2006		Glen M. Johnson
		Senior Vice President and
		Chief Financial Officer

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EXHIBIT INDEX

10.1		First Amendment to Bernard Dan Employment Agreement, dated ~~March~~June 231, 2006 ~~between the Registrant and Kevin J.P. O’Hara~~ (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed ~~March~~June 297, 2006).
10.2		Retirement Agreement, dated March 6, 2006, by and among the Registrant, Board of Trade of the City of Chicago, Inc. and Carol A. Burke (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K filed March 7, 2006)
10.3		Director Compensation Policy (incorporated by reference to Exhibit 99.1 of the Registrant’s Current Report on Form 8-K filed February 22, 2006)
10.4		Letter relating to the employment of Christopher Malo, dated February 8, 2005, from Board of Trade of the City of Chicago, Inc. to Christopher Malo
31.1		Certification by CEO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2		Certification by CFO Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1		Certification by CEO and CFO Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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Filing Compare · CBOT HOLDINGS INC