EX-99.1 3 ba2001-ex99_1.txt MONTHLY REPORTS EXHIBIT 99.1 BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS Statements are available online at http://www-apps.gis.deutsche-bank.com/invr. Statement posting begins 7:00 PM Eastern time the business day prior to distribution.

Page 2 of 5 (C) COPYRIGHT 2001 Deutsche Bank BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS Statements are available online at http://www-apps.gis.deutsche-bank.com/invr. Statement posting begins 7:00 PM Eastern time the business day prior to distribution.

Page 5 of 5 (C) COPYRIGHT 2001 Deutsche Bank BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS Statements are available online at http://www-apps.gis.deutsche-bank.com/invr. Statement posting begins 7:00 PM Eastern time the business day prior to distribution. DISTRIBUTIONS IN DOLLARS PRIOR CURRENT ORIGINAL PRINCIPAL REALIZED DEFERRED PRINCIPAL CLASS FACE VALUE BALANCE INTEREST PRINCIPAL TOTAL LOSSES INTEREST BALANCE ----------------------------------------------------------------------------------------------------------------------------------- P1-M 21,501.00 8,294.72 0.00 11.71 11.71 0.00 0.00 8,283.01 P2-M 350,133.00 243,668.07 0.00 1,226.94 1,226.94 0.00 0.00 242,441.13 X1-M * 142,084,361.67 80,921,505.02 34,742.97 0.00 34,742.97 0.00 0.00 80,570,709.81 X2-M * 187,559,494.52 98,508,091.59 17,913.42 0.00 17,913.42 0.00 0.00 95,587,372.54 Y1 71,698.81 39,919.19 224.56 0.00 224.56 0.00 0.00 39,919.19 Y2 99,676.65 49,488.12 268.06 185.74 453.80 0.00 0.00 49,302.38 Z1 143,556,266.44 82,040,647.67 461,478.64 352,339.45 813,818.09 0.00 0.00 81,688,308.22 Z2 199,253,620.42 106,594,392.00 577,386.28 2,961,577.08 3,538,963.36 0.00 0.00 103,632,814.92 R-I 50.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ----------------------------------------------------------------------------------------------------------------------------------- TOTALS 343,352,946.32 188,976,409.77 1,092,013.93 3,315,340.92 4,407,354.85 0.00 0.00 185,661,068.85 -----------------------------------------------------------------------------------------------------------------------------------

*Notional Class Balance

Page 1 of 5 (C) COPYRIGHT 2001 Deutsche Bank BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS Statements are available online at http://www-apps.gis.deutsche-bank.com/invr. Statement posting begins 7:00 PM Eastern time the business day prior to distribution. DISTRIBUTIONS IN DOLLARS PRIOR CURRENT ORIGINAL PRINCIPAL REALIZED DEFERRED PRINCIPAL CLASS FACE VALUE BALANCE INTEREST PRINCIPAL TOTAL LOSSES INTEREST BALANCE ----------------------------------------------------------------------------------------------------------------------------------- IA-1 96,101,504.00 34,690,036.70 195,131.46 348,148.23 543,279.69 0.00 0.00 34,341,888.47 IA-2 5,000,000.00 5,000,000.00 28,125.00 0.00 28,125.00 0.00 0.00 5,000,000.00 IA-3 9,500,000.00 9,500,000.00 53,437.50 0.00 53,437.50 0.00 0.00 9,500,000.00 IA-4 14,250,000.00 14,250,000.00 80,156.25 0.00 80,156.25 0.00 0.00 14,250,000.00 IA-5 4,887,000.00 4,887,000.00 27,489.38 0.00 27,489.38 0.00 0.00 4,887,000.00 IA-6 9,939,000.00 9,939,000.00 55,906.88 0.00 55,906.88 0.00 0.00 9,939,000.00 I-X * 11,983,709.00 6,176,527.75 34,742.96 0.00 34,742.96 0.00 0.00 6,140,913.46 I-PO 21,501.00 8,294.72 0.00 11.71 11.71 0.00 0.00 8,283.01 IIA-1 121,111,453.00 63,669,549.14 344,876.72 1,835,986.41 2,180,863.13 0.00 0.00 61,833,562.73 IIA-2 1,000,000.00 345,778.42 1,872.97 20,990.71 22,863.68 0.00 0.00 324,787.71 IIA-3 8,262,000.00 ,262,000.00 44,752.50 0.00 44,752.50 0.00 0.00 8,262,000.00 IIA-4 14,913,749.00 12,841,725.43 69,559.35 62,253.10 131,812.45 0.00 0.00 12,779,472.33 IIA-5 46,447,250.00 16,795,926.46 90,977.93 1,019,608.20 1,110,586.13 0.00 0.00 15,776,318.26 IIA-6 2,127,000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 II-X * 7,513,508.12 3,307,093.28 17,913.42 0.00 17,913.42 0.00 0.00 3,186,622.98 II-PO 350,133.00 243,668.07 0.00 1,226.94 1,226.94 0.00 0.00 242,441.13 ----------------------------------------------------------------------------------------------------------------------------------- TOTALS 333,910,590.00 180,432,978.94 1,044,942.32 3,288,225.30 4,333,167.62 0.00 0.00 177,144,753.64 ----------------------------------------------------------------------------------------------------------------------------------- *Notional Class Balance

*Notional Class Balance

BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS Statements are available online at http://www-apps.gis.deutsche-bank.com/invr. Statement posting begins 7:00 PM Eastern time the business day prior to distribution.

*Notional Class Balance

BA MORTGAGE SECURITIES, INC. MORTGAGE PASS-THROUGH CERTIFICATES SERIES 1998-1 STATEMENT TO CERTIFICATEHOLDERS ------------------------------------------------------------------------------------------------------------------------------------ Distribution Date: November 26, 2001 ------------------------------------------------------------------------------------------------------------------------------------

BA MORTGAGE SECURITIES INC MORT PASS THR CERT SERIES 1998-1 10-K