ACNB (ACNB) Stock Chart & Stock Price History $45.11 +0.94 (+2.13%) Closing price 09/17/2025 04:00 PM EasternExtended Trading$45.16 +0.05 (+0.10%) As of 09/17/2025 04:04 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 ACNB Stock Price Performance The ACNB (ACNB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 5.20%, with a year-to-date return of 13.26%. In the past month, the stock has increased 2.27%, reflecting recent market activity. As of the latest close, ACNB traded at $45.11 with a market cap of $472.30 million and volume of 24,976 shares. Five years ago, the stock traded at $21.70, representing a 107.88% increase over that period. At the time, it had a market cap of $188.70 million and a volume of 29,465 shares. Receive ACNB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ACNB 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. 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Read our full terms of service and privacy policy. 5 Day Performance+0.36%1 Month Performance+2.27%3 Month Performance+9.73%Year-To-Date Performance+13.26%1 Year Performance+5.20%5 Year Performance+107.88% ACNB Stock Chart for Thursday, September, 18, 2025 ACNB Chart by TradingView ACNB 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 Capitalization09/17/2025$44.17$45.11+2.13%$46.13$44.8924,976 shs$472.30 million09/16/2025$44.77$44.17-1.34%$45.11$44.1213,975 shs$462.37 million09/15/2025$44.95$44.77-0.40%$46.00$44.7012,214 shs$468.74 million09/12/2025$45.19$44.95-0.53%$45.30$44.6712,428 shs$470.63 million09/11/2025$44.87$45.19+0.71%$45.47$44.6712,560 shs$473.14 million09/10/2025$44.51$44.87+0.81%$45.01$44.2011,385 shs$469.70 million09/09/2025$45.18$44.51-1.48%$44.73$44.4910,422 shs$466.02 million09/08/2025$44.91$45.18+0.60%$45.18$44.7211,074 shs$473.04 million09/05/2025$45.50$44.91-1.30%$45.75$44.7516,333 shs$470.21 million09/04/2025$44.88$45.50+1.38%$45.50$45.019,827 shs$476.39 million Get the Latest News and Ratings for ACNB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ACNB and its competitors with MarketBeat's FREE daily newsletter. 09/03/2025$44.81$44.88+0.16%$45.04$44.4924,248 shs$469.80 million09/02/2025$45.32$44.81-1.13%$45.04$43.8150,153 shs$469.16 million09/01/2025$45.32$45.32$45.94$45.0815,113 shs$474.50 million08/29/2025$46.07$45.32-1.63%$45.94$45.0815,113 shs$474.50 million08/28/2025$46.05$46.07+0.04%$46.20$45.737,548 shs$482.26 million08/27/2025$46.55$46.05-1.07%$46.68$45.9417,007 shs$482.14 million08/26/2025$46.00$46.55+1.20%$46.70$45.8416,064 shs$487.38 million08/25/2025$46.59$46.00-1.27%$46.53$45.9810,536 shs$481.53 million08/22/2025$44.10$46.59+5.65%$46.85$44.3943,443 shs$487.70 million08/21/2025$44.68$44.10-1.30%$46.24$42.6365,290 shs$461.73 million08/20/2025$44.35$44.68+0.74%$44.68$44.2412,378 shs$467.80 million08/19/2025$44.11$44.35+0.54%$44.64$43.5210,784 shs$464.26 million08/18/2025$44.11$44.11$44.38$43.849,613 shs$461.83 million Related Companies First Business Financial Services Stock Price Chart First Community Bancshares Stock Price Chart First Mid Bancshares Stock Price Chart Mercantile Bank Stock Price Chart MidWestOne Financial Group Stock Price Chart Origin Bancorp Stock Price Chart First Financial Corporation Indiana Stock Price Chart West Bancorporation Stock Price Chart Bar Harbor Bankshares Stock Price Chart Tompkins Financial Stock Price Chart Receive ACNB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ACNB and its competitors with MarketBeat's FREE daily newsletter. 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