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Old Second Bancorp (OSBC) Stock Chart & Stock Price History

Old Second Bancorp logo
$25.53 +0.02 (+0.08%)
Closing price 09/15/2026 04:00 PM Eastern
Extended Trading
$25.52 -0.01 (-0.02%)
As of 09/15/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Old Second Bancorp Stock Price Performance

The Old Second Bancorp (OSBC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 43.27%, with a year-to-date return of 30.92%. In the past month, the stock has decreased 1.47%, reflecting recent market activity.

As of the latest close, Old Second Bancorp traded at $25.53 with a market cap of $1.30 billion and volume of 486,520 shares. Five years ago, the stock traded at $12.09, representing a 111.17% increase over that period. At the time, it had a market cap of $347.08 million and a volume of 138,588 shares.

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5 Day
Performance
-0.20%
1 Month
Performance
-1.47%
3 Month
Performance
+15.73%
Year-To-Date
Performance
+30.92%
1 Year
Performance
+43.27%
5 Year
Performance
+111.17%

OSBC Stock Chart for Wednesday, September, 16, 2026

OSBC Chart by TradingView

Old Second Bancorp Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/15/2026$25.51$25.53
+0.08%		$25.68$25.33486,520 shs$1.30 billion
09/14/2026$25.58$25.51
-0.27%		$25.84$25.46472,499 shs$1.30 billion
09/11/2026$25.53$25.58
+0.20%		$25.82$25.33381,365 shs$1.30 billion
09/10/2026$25.26$25.53
+1.07%		$25.53$25.00361,621 shs$1.30 billion
09/09/2026$25.53$25.26
-1.06%		$25.51$25.08404,009 shs$1.29 billion
09/08/2026$25.72$25.53
-0.74%		$25.74$25.43442,029 shs$1.30 billion
09/07/2026$25.72$25.72$25.83$25.50429,636 shs$1.31 billion
09/04/2026$25.68$25.72
+0.16%		$25.83$25.50429,636 shs$1.31 billion
09/03/2026$25.53$25.68
+0.59%		$25.85$25.55476,096 shs$1.31 billion
09/02/2026$25.08$25.53
+1.79%		$25.68$25.09517,666 shs$1.30 billion
09/01/2026$25.08$25.08$25.54$24.95442,960 shs$1.28 billion
08/31/2026$25.24$25.08
-0.63%		$25.36$25.03415,755 shs$1.28 billion
08/28/2026$25.17$25.24
+0.28%		$25.37$25.15388,760 shs$1.28 billion
08/27/2026$25.25$25.17
-0.32%		$25.29$24.89290,328 shs$1.28 billion
08/26/2026$25.19$25.25
+0.24%		$25.38$25.11327,646 shs$1.28 billion
08/25/2026$25.45$25.19
-1.02%		$25.52$25.18313,039 shs$1.28 billion
08/24/2026$25.33$25.45
+0.47%		$25.63$25.29317,212 shs$1.29 billion
08/21/2026$25.20$25.33
+0.52%		$25.50$25.07337,299 shs$1.29 billion
08/20/2026$25.04$25.20
+0.64%		$25.25$24.70370,489 shs$1.28 billion
08/19/2026$25.66$25.04
-2.42%		$25.74$25.02529,123 shs$1.27 billion
08/18/2026$25.83$25.66
-0.66%		$26.00$25.62344,212 shs$1.31 billion
08/17/2026$25.91$25.83
-0.31%		$26.06$25.71381,531 shs$1.31 billion
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This page (NASDAQ:OSBC) was last updated on 9/15/2026 by MarketBeat.com Staff.
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