ACI Worldwide (ACIW) Stock Chart & Stock Price History $50.15 -0.48 (-0.95%) Closing price 04:00 PM EasternExtended Trading$50.17 +0.02 (+0.04%) As of 04:57 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock ACI Worldwide Stock Price Performance The ACI Worldwide (ACIW) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 5.85%, with a year-to-date return of -3.39%. In the past month, the stock has increased 8.22%, reflecting recent market activity. As of the latest close, ACI Worldwide traded at $50.63 with a market cap of $5.22 billion and volume of 915,070 shares. Five years ago, the stock traded at $24.66, representing a 103.37% increase over that period. At the time, it had a market cap of $2.90 billion and a volume of 2.84 million shares. Receive ACIW Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ACI Worldwide 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-0.20%1 Month Performance+8.22%3 Month Performance+6.98%Year-To-Date Performance-3.39%1 Year Performance+5.85%5 Year Performance+103.37% ACIW Stock Chart for Friday, September, 12, 2025 ACIW Chart by TradingView ACI Worldwide 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 Capitalization09/12/2025$50.63$50.15-0.95%$50.94$50.12888,541 shs$5.22 billion09/11/2025$50.09$50.63+1.08%$50.91$49.43915,070 shs$5.22 billion09/10/2025$51.23$50.09-2.23%$51.64$49.881.06 million shs$5.17 billion09/09/2025$51.21$51.23+0.04%$51.35$50.27725,182 shs$5.29 billion09/08/2025$50.25$51.21+1.91%$51.30$49.481.43 million shs$5.28 billion09/05/2025$49.64$50.25+1.23%$51.00$49.87709,381 shs$5.19 billion09/04/2025$49.17$49.64+0.96%$49.67$48.41800,768 shs$5.12 billion09/03/2025$48.98$49.17+0.39%$49.22$48.571.14 million shs$5.07 billion09/02/2025$49.35$48.98-0.75%$49.21$48.45756,062 shs$5.05 billion09/01/2025$49.35$49.35$49.42$48.88789,286 shs$5.09 billion Get the Latest News and Ratings for ACIW and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ACI Worldwide and its competitors with MarketBeat's FREE daily newsletter. 08/29/2025$49.20$49.35+0.30%$49.42$48.88789,286 shs$5.09 billion08/28/2025$48.49$49.20+1.46%$49.22$48.18849,854 shs$5.08 billion08/27/2025$48.14$48.49+0.73%$48.50$47.81691,965 shs$5.00 billion08/26/2025$48.76$48.14-1.27%$48.90$48.131.61 million shs$4.97 billion08/25/2025$49.31$48.76-1.12%$49.51$48.72682,678 shs$5.03 billion08/22/2025$47.87$49.31+3.01%$49.83$48.13773,956 shs$5.09 billion08/21/2025$47.09$47.87+1.66%$47.91$46.621.05 million shs$4.94 billion08/20/2025$47.03$47.09+0.13%$47.25$46.78823,943 shs$4.86 billion08/19/2025$47.25$47.03-0.47%$47.77$46.97520,777 shs$4.85 billion08/18/2025$46.56$47.25+1.48%$47.36$46.23573,813 shs$4.88 billion08/15/2025$46.61$46.56-0.11%$46.83$45.94763,641 shs$4.80 billion08/14/2025$47.29$46.61-1.44%$47.03$46.29919,625 shs$4.81 billion08/13/2025$46.34$47.29+2.05%$47.62$46.291.12 million shs$4.88 billion08/12/2025$44.39$46.34+4.39%$46.49$44.491.16 million shs$4.78 billion08/11/2025$44.55$44.39-0.36%$45.13$44.29934,971 shs$4.58 billion Related Companies Guidewire Software Stock Chart FactSet Research Systems Stock Chart Manhattan Associates Stock Chart Pegasystems Stock Chart Informatica Stock Chart Blackbaud Stock Chart Sapiens International Stock Chart ePlus Stock Chart NetScout Systems Stock Chart Verint Systems Stock Chart Receive ACIW Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ACI Worldwide and its competitors with MarketBeat's FREE daily newsletter. 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