Old Second Bancorp Inc (OSBC) stock
Close on Nov 11, 2026Market cap $1.28BP/E 11.8Yield 1.00%
Old Second Bancorp Inc grew revenue 20.6% to $382.69M over the twelve months to Sep 30, 2026. Free cash flow was $171.66M, up 78.3% from a year earlier. At the latest close the market valued the company at $1.28B, 11.8 times its earnings.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Sep 30, 2026
Valuation
- Market cap
- $1.28B
- P/E ratio
- 11.8
- Price to sales
- 3.34
- Price to book
- 1.45
- Dividend yield
- 1.00%
- Free cash flow yield
- 13.44%
Fundamentals
- Revenue
- $382.69M
- Net income
- $111.49M
- EPS, diluted
- $2.12
- Free cash flow
- $171.66M
- Book value per share
- $17.18
- Diluted shares
- 51M
Trading
- Next earnings
- Jan 20, 2027 (estimated, after the close)
- Previous close
- $25.08
- Open
- $25.08
- Day's range
- $24.96 – $25.26
- Volume
- 566,113
- Average volume (20 days)
- 620,321
- Index membership
- Russell 2000, Russell 3000
- Beta (5 years)
- 0.60
- 52-week range
- $17.61 – $26.05
- RSI (14 days)
- 54.3
- Volatility (1 year)
- 23.4%
- Relative volume
- 1.12×
- WACC
- 7.9%
Index membership is inferred from the holdings of funds that track each index (IWM, IWV), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.
Market cap history
Month-end market cap since 2011, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.
| Period | OSBC | S&P 500 | Difference | OSBC per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +2.3% | -2.4% | +4.7 pts | ||
| 3 months | -1.1% | -1.2% | +0.1 pts | ||
| Year to date | +30.4% | +12.3% | +18.1 pts | ||
| 1 year | +38.0% | +12.4% | +25.5 pts | ||
| 3 years | +90.6% | +78.8% | +11.8 pts | +24.0% | +21.4% |
| 5 years | +93.9% | +75.2% | +18.7 pts | +14.2% | +11.9% |
| 10 years | +215.5% | +311.1% | −95.6 pts | +12.2% | +15.2% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Net income
EPS, diluted
Free cash flow
Press releases
Releases Old Second Bancorp filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Results
- Results
- Update
- Results
About Old Second Bancorp
State Commercial Banks
Old Second Bancorp, Inc. is a financial services holding company that operates primarily through its banking subsidiary. The company provides a range of commercial banking and financial products and services, including deposit accounts, residential mortgages, mortgage banking and servicing, and fiduciary and trust services. It also engages in various lending activities across portfolio segments such as commercial loans, commercial real estate loans (including owner-occupied and investor properties), construction loans, home equity loans, and powersport financing, serving both commercial entities and individual retail customers.
Company profile, executives and historyOld Second Bancorp stock: common questions
What is Old Second Bancorp's stock price?
OSBC closed at $25.10 on Nov 11, 2026, up 0.08% on the day. Over the past 52 weeks it traded between $17.61 and $26.05.
What is Old Second Bancorp's market cap?
Old Second Bancorp was worth $1.28B at the close on Nov 11, 2026: the share price times the diluted shares outstanding.
What is OSBC's P/E ratio?
OSBC trades at 11.8 times earnings, based on diluted earnings per share of $2.12 over the twelve months to Sep 30, 2026.
How much revenue does Old Second Bancorp make?
Old Second Bancorp reported revenue of $382.69M for the twelve months to Sep 30, 2026, up 20.6% from a year earlier.
Does Old Second Bancorp pay a dividend?
Yes. Old Second Bancorp paid $0.25 per share over the last twelve months, a yield of 1.00% at the latest price, and has raised its annual dividend 2 years in a row.
When does Old Second Bancorp report earnings next?
Old Second Bancorp is expected to report Q4 FY2026 results on Jan 20, 2027, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has OSBC stock performed over the past year?
Including dividends, OSBC returned +38.0% over the past year, against +12.4% for the S&P 500.
How many OSBC shares are sold short?
3M shares were sold short at the latest FINRA report, 6.50% of the float, or 5.2 days of average trading volume.
Who are Old Second Bancorp's competitors?
Companies most similar to Old Second Bancorp by business, industry and size include FMBH, CTBI, QCRH, MBWM, FBK.
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