International Bancshares (IBOC) Stock Chart & Stock Price History $70.86 -0.05 (-0.07%) Closing price 04:00 PM EasternExtended Trading$70.92 +0.06 (+0.08%) As of 04:49 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 AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock International Bancshares Stock Price Performance The International Bancshares (IBOC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 20.37%, with a year-to-date return of 12.19%. In the past month, the stock has increased 2.15%, reflecting recent market activity. As of the latest close, International Bancshares traded at $70.91 with a market cap of $4.41 billion and volume of 265,635 shares. Five years ago, the stock traded at $34.21, representing a 107.13% increase over that period. At the time, it had a market cap of $2.12 billion and a volume of 125,900 shares. Receive IBOC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for International Bancshares and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+3.02%1 Month Performance+2.15%3 Month Performance+8.58%Year-To-Date Performance+12.19%1 Year Performance+20.37%5 Year Performance+107.13% IBOC Stock Chart for Wednesday, August, 13, 2025 IBOC Chart by TradingView International Bancshares 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 Capitalization08/13/2025$70.91$70.86-0.07%$71.83$70.63211,304 shs$4.40 billion08/12/2025$68.78$70.91+3.10%$71.04$69.05265,635 shs$4.41 billion08/11/2025$68.78$68.78$69.75$68.35188,851 shs$4.27 billion08/08/2025$68.86$68.78-0.12%$69.88$68.46190,715 shs$4.27 billion08/07/2025$69.36$68.86-0.72%$70.03$68.62164,659 shs$4.28 billion08/06/2025$69.48$69.36-0.17%$69.84$69.20153,871 shs$4.31 billion08/05/2025$69.20$69.48+0.40%$69.85$67.85280,038 shs$4.32 billion08/04/2025$67.44$69.20+2.61%$69.20$67.46220,209 shs$4.30 billion08/01/2025$68.18$67.44-1.09%$68.78$66.13252,142 shs$4.19 billion07/31/2025$68.48$68.18-0.44%$68.62$67.37291,725 shs$4.24 billion Get the Latest News and Ratings for IBOC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for International Bancshares and its competitors with MarketBeat's FREE daily newsletter. 07/30/2025$70.15$68.48-2.38%$70.49$68.21192,847 shs$4.26 billion07/29/2025$69.72$70.15+0.62%$70.46$69.43214,764 shs$4.36 billion07/28/2025$69.46$69.72+0.37%$69.89$69.35266,567 shs$4.33 billion07/25/2025$68.62$69.46+1.22%$69.49$67.76170,173 shs$4.32 billion07/24/2025$70.01$68.62-1.99%$69.72$68.34250,463 shs$4.26 billion07/23/2025$69.62$70.01+0.56%$70.26$69.05184,747 shs$4.35 billion07/22/2025$69.67$69.62-0.07%$70.49$69.02148,703 shs$4.33 billion07/21/2025$69.53$69.67+0.20%$70.79$69.44165,848 shs$4.33 billion07/18/2025$69.68$69.53-0.22%$70.21$68.99168,844 shs$4.32 billion07/17/2025$68.33$69.68+1.98%$69.84$67.90209,769 shs$4.33 billion07/16/2025$67.81$68.33+0.77%$68.69$67.11213,582 shs$4.25 billion07/15/2025$70.26$67.81-3.49%$70.69$67.75221,705 shs$4.21 billion07/14/2025$69.37$70.26+1.28%$70.68$69.17162,005 shs$4.37 billion Related Companies Ameris Bancorp Stock Price Chart First Busey Stock Price Chart Cathay General Bancorp Stock Price Chart First Financial Bancorp. Stock Price Chart Hancock Whitney Stock Price Chart S&T Bancorp Stock Price Chart Towne Bank Stock Price Chart United Bankshares Stock Price Chart F.N.B. Stock Price Chart Home BancShares Stock Price Chart Receive IBOC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for International Bancshares and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:IBOC) was last updated on 8/13/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. 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