OOLD SECOND BANCORP INC logo
OSBC//CIK 0000357173

OLD SECOND BANCORP INC

SIC 6022State Commercial Banksoperating

Exchange

Nasdaq

Entity type

operating

Fiscal year end

Dec 31

Headquarters

DE

Research Summary

AI-assisted · Grounded in filings

Updated Nov 24, 2025

OLD SECOND BANCORP INC

OLD SECOND BANCORP INC, trading as OSBC, is a State Commercial Bank holding company whose earnings momentum is tied to the Midwest community banking franchise it built around deposit services, commercial and consumer lending, and treasury management solutions for small to mid-sized businesses and affluent households in Illinois. Its capital-planning discipline and asset-liability management reflect the broader SIC context of regional commercial banks balancing traditional relationship banking with competitive pressure from national players, and its risk profile leans heavily on interest-rate swings, loan-credit quality, and liquidity in a regulated environment overseen by the Federal Deposit Insurance Corporation and the state banking department. CIK 357173 anchors investor access to the fact that the latest public disclosure was a Form 10-Q filed in November 1999, underscoring the need to track current filings consistently, so view live SEC filings on Earnings Feed.

Market Data

Dec 3, 4:00 PM ET
$19.49+$1.49 (+8.28%)

OSBC · Last trade

Prev Close

$18.00

Range (29d)

$17.67 – $19.49

$17.50$18.00$18.50$19.00$19.50Nov 4Nov 13Nov 21Dec 3