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

Old Second Bancorp logo
$20.82 +0.39 (+1.91%)
Closing price 05/18/2026 04:00 PM Eastern
Extended Trading
$20.82 0.00 (0.00%)
As of 04:07 AM 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 21.90%, with a year-to-date return of 6.77%. In the past month, the stock has decreased 5.06%, reflecting recent market activity.

As of the latest close, Old Second Bancorp traded at $20.82 with a market cap of $1.07 billion and volume of 300,863 shares. Five years ago, the stock traded at $13.87, representing a 50.11% increase over that period. At the time, it had a market cap of $400.29 million and a volume of 67,181 shares.

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5 Day
Performance
+0.53%
1 Month
Performance
-5.06%
3 Month
Performance
+2.21%
Year-To-Date
Performance
+6.77%
1 Year
Performance
+21.90%
5 Year
Performance
+50.11%

OSBC Stock Chart for Tuesday, May, 19, 2026

OSBC Chart by TradingView

Old Second Bancorp Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
05/18/2026$20.43$20.82
+1.91%		$20.90$20.46300,863 shs$1.07 billion
05/15/2026$20.71$20.43
-1.35%		$20.72$20.35364,123 shs$1.05 billion
05/14/2026$20.65$20.71
+0.29%		$21.06$20.69279,758 shs$1.07 billion
05/13/2026$20.85$20.65
-0.96%		$20.97$20.54402,779 shs$1.06 billion
05/12/2026$20.88$20.85
-0.14%		$20.99$20.33372,152 shs$1.07 billion
05/11/2026$21.28$20.88
-1.88%		$21.42$20.72510,611 shs$1.07 billion
05/08/2026$21.08$21.28
+0.95%		$21.34$21.07323,739 shs$1.09 billion
05/07/2026$21.17$21.08
-0.43%		$21.47$20.63395,630 shs$1.09 billion
05/06/2026$20.96$21.17
+1.00%		$21.41$21.03414,027 shs$1.10 billion
05/05/2026N/A$20.96$21.14$20.49361,861 shs$1.09 billion
04/30/2026$20.51$20.61
+0.49%		$20.83$20.24357,469 shs$1.07 billion
04/29/2026$20.91$20.51
-1.91%		$20.93$20.42362,713 shs$1.06 billion
04/28/2026$20.37$20.91
+2.65%		$20.98$20.51512,775 shs$1.08 billion
04/27/2026$20.00$20.37
+1.85%		$20.41$19.93436,351 shs$1.05 billion
04/24/2026$19.85$20.00
+0.76%		$20.05$19.65604,933 shs$1.04 billion
04/23/2026$21.21$19.85
-6.41%		$20.91$19.251.07 million shs$1.03 billion
04/22/2026$21.37$21.21
-0.75%		$21.50$21.15329,224 shs$1.10 billion
04/21/2026$21.79$21.37
-1.93%		$21.88$21.32264,456 shs$1.11 billion
04/20/2026$21.93$21.79
-0.64%		$22.09$21.78251,202 shs$1.13 billion
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This page (NASDAQ:OSBC) was last updated on 5/19/2026 by MarketBeat.com Staff.
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