Investar (ISTR) Stock Chart & Stock Price History $28.00 +0.29 (+1.05%) Closing price 05/18/2026 04:00 PM EasternExtended Trading$27.99 -0.01 (-0.04%) As of 05/18/2026 05:44 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. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Investar Stock Price Performance The Investar (ISTR) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 43.15%, with a year-to-date return of 4.79%. In the past month, the stock has decreased 2.44%, reflecting recent market activity. As of the latest close, Investar traded at $28.00 with a market cap of $386.12 million and volume of 80,491 shares. Five years ago, the stock traded at $22.31, representing a 25.50% increase over that period. At the time, it had a market cap of $232.31 million and a volume of 22,819 shares. Receive ISTR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Investar and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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. 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Read our full terms of service and privacy policy. 5 Day Performance+0.47%1 Month Performance-2.44%3 Month Performance-4.89%Year-To-Date Performance+4.79%1 Year Performance+43.15%5 Year Performance+25.50% ISTR Stock Chart for Tuesday, May, 19, 2026 ISTR Chart by TradingView Investar 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 DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/18/2026$27.71$28.00+1.05%$28.16$27.7980,491 shs$386.12 million05/15/2026$27.87$27.71-0.57%$28.10$27.5385,628 shs$382.12 million05/14/2026$27.63$27.87+0.87%$28.19$27.75120,007 shs$384.33 million05/13/2026$27.88$27.63-0.90%$27.89$27.5977,284 shs$381.13 million05/12/2026$27.77$27.88+0.40%$28.01$27.3188,078 shs$383.07 million05/11/2026$28.47$27.77-2.46%$28.50$27.70119,204 shs$381.56 million05/08/2026$28.47$28.47$28.73$28.35125,403 shs$391.30 million05/07/2026$28.36$28.47+0.39%$28.66$28.32218,294 shs$391.29 million05/06/2026$28.08$28.36+1.00%$28.70$28.2274,163 shs$389.67 million05/05/2026N/A$28.08$28.18$27.7585,362 shs$385.82 million Get the Latest News and Ratings for ISTR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Investar and its competitors with MarketBeat's FREE daily newsletter. 04/30/2026$27.75$27.71-0.14%$27.99$27.65121,890 shs$380.74 million04/29/2026$28.12$27.75-1.32%$28.31$27.67135,975 shs$381.29 million04/28/2026$27.72$28.12+1.44%$28.42$28.00333,547 shs$386.48 million04/27/2026$27.71$27.72+0.04%$28.40$27.57144,544 shs$380.87 million04/24/2026$27.41$27.71+1.09%$27.96$27.25117,475 shs$380.74 million04/23/2026$28.43$27.41-3.59%$28.08$26.74331,389 shs$376.61 million04/22/2026$28.41$28.43+0.07%$28.96$28.29165,351 shs$390.74 million04/21/2026$29.79$28.41-4.63%$29.85$28.40342,700 shs$390.35 million04/20/2026$28.70$29.79+3.80%$30.41$28.98385,585 shs$409.32 million Related Companies Cathay General Bancorp Stock Price Chart CVB Financial Stock Price Chart Heritage Financial Stock Price Chart Hope Bancorp Stock Price Chart Independent Bank Stock Price Chart NB Bancorp Stock Price Chart Old National Bancorp Stock Price Chart Univest Corporation of Pennsylvania Stock Price Chart Byline Bancorp Stock Price Chart Origin Bancorp Stock Price Chart Receive ISTR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Investar and its competitors with MarketBeat's FREE daily newsletter. 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