Stock listing
BOATS:OSBC Old Second Bancorp, Inc. Stock
US listing (BOATS) of Old Second Bancorp, Inc. · home listing NASDAQ:OSBC
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Home listing price · NASDAQ:OSBC
$24.30 USD -0.33 (-1.3%)
Close on Oct 30, 2026 · This listing has no price on 6ix; the price shown is the home listing's, NASDAQ:OSBC
- Day range
- $24.19 – $24.84 USDOct 30, 2026
- Volume
- 521,978 sharesOct 30, 2026
- Market cap
- $1.24B USDAt the close on Oct 30, 2026 · price × 50.88M shares outstanding
- 52-week range
- $17.54 – $26.06 USDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $12.55M USDMedian day 468,100 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026

Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:OSBC · Home | $24.30 USD | -0.33 (-1.3%) | 521,978 | $24.59 | $24.84 | $24.19 | $24.63 | Close on Oct 30, 2026 |
| Frankfurt:OSB | €20.40 EUR | +0.40 (+2.0%) | — | €20.40 | €20.40 | €20.40 | €20.00 | Close on Oct 27, 2026 |
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · NASDAQ:OSBC · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $24.30 | -0.33 | -1.3% | $24.59 | $24.84 | $24.19 | 521,978 | |
| $24.63 | +0.22 | +0.9% | $24.64 | $24.80 | $24.44 | 502,370 | |
| $24.41 | -0.19 | -0.8% | $24.65 | $24.74 | $24.10 | 569,869 | |
| $24.60 | -0.17 | -0.7% | $24.84 | $25.00 | $24.44 | 602,471 | |
| $24.77 | +0.34 | +1.4% | $24.43 | $24.95 | $24.42 | 800,867 | |
| $24.43 | -0.28 | -1.1% | $24.40 | $24.66 | $24.28 | 927,100 | |
| $24.71 | -0.16 | -0.6% | $24.50 | $24.95 | $23.69 | 829,500 | |
| $24.87 | -0.23 | -0.9% | $25.14 | $25.24 | $24.69 | 432,800 | |
| $25.10 | +0.26 | +1.0% | $24.84 | $25.49 | $24.84 | 505,800 | |
| $24.84 | -0.04 | -0.2% | $24.78 | $25.06 | $24.76 | 421,600 | |
| $24.88 | +0.03 | +0.1% | $24.93 | $25.50 | $24.88 | 763,600 | |
| $24.85 | +0.22 | +0.9% | $24.76 | $25.06 | $24.61 | 546,900 | |
| $24.63 | -0.17 | -0.7% | $24.42 | $24.80 | $24.35 | 591,000 | |
| $24.80 | -0.04 | -0.2% | $25.03 | $25.13 | $24.65 | 664,000 | |
| $24.84 | +0.23 | +0.9% | $24.66 | $25.06 | $24.47 | 588,800 | |
| $24.61 | -0.25 | -1.0% | $24.76 | $24.85 | $24.54 | 391,800 | |
| $24.86 | +0.20 | +0.8% | $24.65 | $24.97 | $24.46 | 735,700 | |
| $24.66 | -0.39 | -1.6% | $24.77 | $24.84 | $24.45 | 620,300 | |
| $25.05 | +0.18 | +0.7% | $25.22 | $25.32 | $24.95 | 922,400 | |
| $24.87 | -0.08 | -0.3% | $25.04 | $25.06 | $24.66 | 581,500 | |
| $24.95 | +0.32 | +1.3% | $24.82 | $25.20 | $24.79 | 722,000 | |
| $24.63 | +0.14 | +0.6% | $24.38 | $24.67 | $23.99 | 711,100 | |
| $24.49 | -0.16 | -0.6% | $24.64 | $24.82 | $24.29 | 505,100 | |
| $24.65 | -0.20 | -0.8% | $24.85 | $24.98 | $24.44 | 496,000 | |
| $24.85 | -0.10 | -0.4% | $24.92 | $25.03 | $24.76 | 467,700 | |
| $24.95 | +0.13 | +0.5% | $24.86 | $25.11 | $24.86 | 674,100 | |
| $24.82 | +0.27 | +1.1% | $24.55 | $24.89 | $24.44 | 664,900 | |
| $24.55 | -0.10 | -0.4% | $24.66 | $25.13 | $24.42 | 460,800 | |
| $24.65 | -0.18 | -0.7% | $24.98 | $25.15 | $24.64 | 375,500 | |
| $24.83 | -0.16 | -0.6% | $25.08 | $25.26 | $24.82 | 353,100 | |
| $24.99 | +0.07 | +0.3% | $24.80 | $25.07 | $24.59 | 731,100 | |
| $24.92 | -0.06 | -0.2% | $25.19 | $25.34 | $24.88 | 428,200 | |
| $24.98 | -0.55 | -2.2% | $25.45 | $25.53 | $24.51 | 558,200 | |
| $25.53 | +0.02 | +0.1% | $25.52 | $25.68 | $25.33 | 486,500 | |
| $25.51 | -0.07 | -0.3% | $25.50 | $25.84 | $25.46 | 472,500 | |
| $25.58 | +0.05 | +0.2% | $25.75 | $25.82 | $25.33 | 381,400 | |
| $25.53 | +0.27 | +1.1% | $25.24 | $25.53 | $25.00 | 361,600 | |
| $25.26 | -0.27 | -1.1% | $25.25 | $25.51 | $25.08 | 404,000 | |
| $25.53 | -0.19 | -0.7% | $25.61 | $25.74 | $25.43 | 442,000 | |
| $25.72 | +0.04 | +0.2% | $25.50 | $25.83 | $25.50 | 429,600 | |
| $25.68 | +0.15 | +0.6% | $25.68 | $25.85 | $25.55 | 476,100 | |
| $25.53 | +0.45 | +1.8% | $25.17 | $25.68 | $25.09 | 517,700 | |
| $25.08 | 0.00 | 0.0% | $25.10 | $25.54 | $24.95 | 443,000 | |
| $25.08 | -0.16 | -0.6% | $25.19 | $25.36 | $25.03 | 415,800 | |
| $25.24 | +0.07 | +0.3% | $25.22 | $25.37 | $25.15 | 388,800 | |
| $25.17 | -0.08 | -0.3% | $25.06 | $25.29 | $24.89 | 290,300 | |
| $25.25 | +0.06 | +0.2% | $25.24 | $25.38 | $25.11 | 327,600 | |
| $25.19 | -0.26 | -1.0% | $25.52 | $25.52 | $25.18 | 313,000 | |
| $25.45 | +0.11 | +0.4% | $25.31 | $25.63 | $25.29 | 317,200 | |
| $25.34 | +0.14 | +0.6% | $25.39 | $25.50 | $25.07 | 337,300 | |
| $25.20 | +0.16 | +0.6% | $24.89 | $25.25 | $24.70 | 370,500 | |
| $25.04 | -0.62 | -2.4% | $25.64 | $25.74 | $25.02 | 529,100 | |
| $25.66 | -0.17 | -0.7% | $25.93 | $26.00 | $25.62 | 344,200 | |
| $25.83 | -0.08 | -0.3% | $25.78 | $26.06 | $25.71 | 381,500 | |
| $25.91 | +0.10 | +0.4% | $25.82 | $25.95 | $25.67 | 338,600 | |
| $25.81 | +0.01 | 0.0% | $25.89 | $26.01 | $25.71 | 426,800 | |
| $25.80 | +0.35 | +1.4% | $25.48 | $25.84 | $25.47 | 324,300 | |
| $25.45 | +0.17 | +0.7% | $25.32 | $25.62 | $25.30 | 371,400 | |
| $25.28 | -0.16 | -0.6% | $25.34 | $25.56 | $25.15 | 395,300 | |
| $25.44 | -0.34 | -1.3% | $25.68 | $25.73 | $25.33 | 460,700 | |
| $25.78 | -0.11 | -0.4% | $25.99 | $26.02 | $25.68 | 413,200 | |
| $25.89 | +0.10 | +0.4% | $25.95 | $25.95 | $25.72 | 468,500 | |
| $25.79 | +0.01 | 0.0% | $25.72 | $26.04 | $25.58 | 551,600 | |
| $25.78 | +0.49 | +1.9% | $25.48 | $25.87 | $25.45 | 521,300 | |
| $25.29 | -0.05 | -0.2% | $25.17 | $25.35 | $24.94 | 336,700 | |
| $25.34 | +0.05 | +0.2% | $25.37 | $25.60 | $25.08 | 343,900 |
- Ticker
- BOATS:OSBC
- Asset type
- Stock
- Sector
- Financials
- Industry
- Banks
- Exchange
- BOATS
- Currency
- USD
What changed lately
Latest news release · Oct 21, 2026
Old Second Bancorp, Inc. Reports Third Quarter 2026 Net Income of $28.9 Million, or $0.56 per Diluted Share
Latest earnings call · Oct 22, 2026
Old Second Bancorp (NASDAQ:OSBC) Q3 2026 Earnings Call
Replay and transcript
Latest deck · Oct 21, 2026
Q3 2026 Earnings Presentation
Earnings · 10 slides
Calls
Replays
Old Second Bancorp (NASDAQ:OSBC) Q3 2026 Earnings Call
Thu, Oct 22, 2026 · 10:00 AM ET
Watch TranscriptOld Second Bancorp (NASDAQ:OSBC) Q2 2026 Earnings Call
Thu, Jul 23, 2026 · 10:00 AM ET
Watch TranscriptOld Second Bancorp (NASDAQ:OSBC) Q1 2026 Earnings Call
Thu, Apr 23, 2026 · 10:00 AM ET
Watch Transcript
Latest news
Old Second Bancorp, Inc. Reports Third Quarter 2026 Net Income of $28.9 Million, or $0.56 per Diluted Share
Oct 21, 2026
Closed $24.71 (-0.6%) on Oct 22, 2026
Old Second Bancorp, Inc. Reports Second Quarter 2026 Net Income of $28.2 Million, or $0.54 per Diluted Share
Jul 22, 2026
Closed $23.51 (+0.4%) on Jul 23, 2026
Graf Joins Old Second National Bank
Jun 15, 2026
Closed $22.01 (-2.2%) on Jun 15, 2026
Old Second Bancorp, Inc. Reports First Quarter 2026 Net Income of $25.6 Million, or $0.48 per Diluted Share
Apr 22, 2026
Closed $19.85 (-6.4%) on Apr 23, 2026
O2 Sponsor Finance provides $30MM Credit Facility to Support Borgman Capital's recapitalization of Gilman Cheese Corporation
Mar 31, 2026
Closed $20.16 (+1.6%) on Mar 31, 2026
Old Second Bancorp, Inc. Reports Fourth Quarter 2025 Net Income of $28.8 Million, or $0.54 per Diluted Share
Jan 21, 2026
Closed $21.47 (+5.4%) on Jan 21, 2026
Decks
Q3 2026 Earnings Presentation
Earnings · 10 slides · Oct 21, 2026
Q2 2026 Earnings Presentation
Earnings · 10 slides · Jul 22, 2026
Shareholder Meeting (May 2026)
Shareholder meeting · 25 slides · May 19, 2026
Q1 2026 Earnings Presentation
Earnings · 10 slides · Apr 22, 2026
Old Second Bancorp, Inc. on 6ix
- Sector
- Financials
- Industry
- Banks
- News releases
- 7 in the last 12 months · 78 in all · newest Oct 21, 2026 · oldest 2019
- Calls
- 11 calls with a replay · 11 with a transcript · latest Oct 22, 2026
- Decks
- 50 decks · latest Oct 21, 2026
Where Old Second Bancorp, Inc. is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:OSBC · Home listing | NASDAQ | United States | USD |
| LS Exchange:923656 | LS Exchange | Germany | EUR |
| BOATS:OSBC · This page | BOATS | United States | USD |
| Frankfurt:OSB | Frankfurt | Germany | EUR |
| Lang & Schwarz:923656 | Lang & Schwarz | Germany | EUR |
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