Old Second Bancorp (OSBC) Stock Chart & Stock Price History $17.89 -0.47 (-2.56%) Closing price 09/19/2025 04:00 PM EasternExtended Trading$17.90 +0.01 (+0.06%) As of 09/19/2025 04:21 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 Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock 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 10.09%, with a year-to-date return of 0.62%. In the past month, the stock has increased 1.88%, reflecting recent market activity. As of the latest close, Old Second Bancorp traded at $17.89 with a market cap of $941.91 million and volume of 1.59 million shares. Five years ago, the stock traded at $8.26, representing a 116.59% increase over that period. At the time, it had a market cap of $244.41 million and a volume of 199,430 shares. Receive OSBC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Old Second Bancorp and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. 5 Day Performance-0.83%1 Month Performance+1.88%3 Month Performance+7.06%Year-To-Date Performance+0.62%1 Year Performance+10.09%5 Year Performance+116.59% OSBC Stock Chart for Saturday, September, 20, 2025 OSBC Chart by TradingView Old Second Bancorp Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization09/19/2025$18.36$17.89-2.56%$18.33$17.891.59 million shs$941.91 million09/18/2025$17.91$18.36+2.51%$18.41$18.01371,536 shs$966.65 million09/17/2025$17.82$17.91+0.51%$18.41$17.87358,522 shs$942.96 million09/16/2025$18.04$17.82-1.22%$18.06$17.72185,010 shs$938.22 million09/15/2025$18.26$18.04-1.20%$18.38$18.00189,244 shs$949.81 million09/12/2025$18.39$18.26-0.71%$18.51$18.13193,755 shs$961.39 million09/11/2025$18.29$18.39+0.55%$18.42$18.16233,327 shs$968.23 million09/10/2025$18.26$18.29+0.16%$18.38$18.23207,090 shs$962.97 million09/09/2025$18.52$18.26-1.40%$18.65$18.22219,622 shs$961.39 million09/08/2025$18.43$18.52+0.49%$18.63$18.26205,868 shs$975.08 million Get the Latest News and Ratings for OSBC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Old Second Bancorp and its competitors with MarketBeat's FREE daily newsletter. 09/05/2025$18.76$18.43-1.76%$18.95$18.35259,467 shs$970.34 million09/04/2025$18.48$18.76+1.52%$18.76$18.42231,881 shs$987.71 million09/03/2025$18.44$18.48+0.22%$18.58$18.20247,170 shs$972.97 million09/02/2025$18.46$18.44-0.11%$18.46$18.17273,861 shs$970.87 million09/01/2025$18.46$18.46$18.68$18.43202,873 shs$971.92 million08/29/2025$18.53$18.46-0.38%$18.68$18.43202,873 shs$971.92 million08/28/2025$18.57$18.53-0.22%$18.62$18.45147,411 shs$975.61 million08/27/2025$18.40$18.57+0.92%$18.61$18.22152,394 shs$977.71 million08/26/2025$18.17$18.40+1.27%$18.51$18.16173,556 shs$968.76 million08/25/2025$18.39$18.17-1.20%$18.36$18.13125,031 shs$956.65 million08/22/2025$17.59$18.39+4.55%$18.42$17.68326,214 shs$968.23 million08/21/2025$17.56$17.59+0.17%$17.64$17.36148,190 shs$926.11 million08/20/2025$17.49$17.56+0.40%$17.59$17.42176,886 shs$924.53 million08/19/2025$17.61$17.49-0.68%$17.80$17.47171,421 shs$920.85 million Related Companies BUSE Stock Price Chart CATY Stock Price Chart FFBC Stock Price Chart FRME Stock Price Chart OBK Stock Price Chart OCFC Stock Price Chart STBA Stock Price Chart TOWN Stock Price Chart UBSI Stock Price Chart UVSP Stock Price Chart Receive OSBC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Old Second Bancorp and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:OSBC) was last updated on 9/20/2025 by MarketBeat.com Staff From Our PartnersForget NVDA. Put $1,000 into this stock nowA massive money shift is underway in the AI market. And it's opening up an extraordinary opportunity in a NEW ...Chaikin Analytics | SponsoredCrypto Gets Official Government Backing—Here's the WinnerTrump Just Signed the GENIUS Act—One Coin is About to Explode We're at the BEGINNING of smart money really ...Crypto 101 Media | SponsoredNvidia CEO Makes First Ever Tesla AnnouncementWhile headlines focus on Tesla’s car sales, tech analyst Jeff Brown says the real story is Tesla’s role in a $...Brownstone Research | SponsoredCollege grad makes $64,000 a monthA Wall Street legend just helped train our own proprietary AI system in the stock market (a project that took ...Stansberry Research | SponsoredForget Tesla — This Tiny AI Stock Is Musk’s Real PlayWhile Wall Street focused on Tesla’s earnings, Elon Musk was quietly building a supercomputer so powerful it c...Behind the Markets | SponsoredAn $8 trillion-dollar discovery 17,000 ft underwater A strange rock pulled from the ocean floor may hold the key to a $16 trillion resource boom. Inside it: materi...Porter & Company | SponsoredWhy silver could go 100X higherInflation is destroying purchasing power at 10–14% per year. Gold will protect you — but not the way you think...Golden Portfolio | SponsoredStunning new initiative unfolding in the White House?what I just learned about what’s unfolding in the White House is truly stunning… And you need to see it for...Paradigm Press | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Old Second Bancorp, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Old Second Bancorp With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Free OSBC Stock Alerts