TotalMarketCap

Old Second Bancorp

OSBCNasdaq United StatesFinanceMajor Banks

Market cap

$1.206 B

$24.39 -3.18%

Close of 6 Nov 2026

As of 6 Nov 2026, Old Second Bancorp (OSBC) has a market capitalization of $1.21B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

—

Not reported

Earnings

$80.3M

#1382 by earnings

Shares outstanding

49,440,752

Latest filing cover page

P/E ratio

15.0

Cap ÷ net income

Major Banks, ranked by market cap

All 244 →
  1. #117HBT FinancialHBT$1.35B
  2. #118Community Trust BancorpCTBI$1.26B
  3. #119Old Second BancorpOSBC$1.21B
  4. #120Metropolitan BankMCB$1.17B
  5. #121Amerant BancorpAMTB$1.15B

What if Old Second Bancorp were worth as much as…

Open the what-if tool →

Gold $28.2T

$571,125.49

Per share 23,416× higher

Bitcoin $1.53T

$30,902.61

Per share 1,267× higher

Apple $5.02T

$101,450.37

Per share 4,160× higher

Or at a round number

$2.00B$5.00B$10.0B$20.0B

Where these numbers come from

Share counts and financials for Old Second Bancorp are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.