ATN International (ATNI) Stock Chart & Stock Price History $16.08 +0.24 (+1.52%) Closing price 04:00 PM EasternExtended Trading$16.08 +0.01 (+0.03%) As of 04:10 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 ATN International Stock Price Performance The ATN International (ATNI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 36.06%, with a year-to-date return of -4.34%. In the past month, the stock has decreased 11.21%, reflecting recent market activity. As of the latest close, ATN International traded at $15.84 with a market cap of $241.09 million and volume of 35,545 shares. Five years ago, the stock traded at $59.45, representing a 72.95% decrease over that period. At the time, it had a market cap of $952.07 million and a volume of 19,000 shares. Receive ATNI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ATN International and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+6.84%1 Month Performance-11.21%3 Month Performance+8.28%Year-To-Date Performance-4.34%1 Year Performance-36.06%5 Year Performance-72.95% ATNI Stock Chart for Wednesday, August, 13, 2025 ATNI Chart by TradingView ATN International 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 Capitalization08/12/2025$15.03$15.84+5.39%$16.12$15.2035,545 shs$241.09 million08/11/2025$15.05$15.03-0.13%$16.07$14.8835,972 shs$228.71 million08/08/2025$16.61$15.05-9.39%$16.80$15.0532,087 shs$229.02 million08/07/2025$16.52$16.61+0.54%$16.74$16.3626,433 shs$252.80 million08/06/2025$16.44$16.52+0.49%$16.65$16.0529,768 shs$251.43 million08/05/2025$16.89$16.44-2.66%$17.06$16.1232,483 shs$250.17 million08/04/2025$16.99$16.89-0.59%$17.24$16.7638,653 shs$257.07 million08/01/2025$17.15$16.99-0.93%$17.13$16.5643,770 shs$258.59 million07/31/2025$17.16$17.15-0.06%$17.30$16.0034,695 shs$261.02 million07/30/2025$17.31$17.16-0.87%$17.40$16.7448,497 shs$261.12 million Get the Latest News and Ratings for ATNI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ATN International and its competitors with MarketBeat's FREE daily newsletter. 07/29/2025$17.87$17.31-3.13%$18.04$17.1940,829 shs$263.46 million07/28/2025$17.82$17.87+0.28%$17.89$17.4120,717 shs$271.98 million07/25/2025$17.95$17.82-0.72%$18.03$17.3827,394 shs$271.22 million07/24/2025$18.73$17.95-4.16%$18.62$17.8324,808 shs$273.15 million07/23/2025$18.46$18.73+1.46%$19.01$18.1117,109 shs$285.07 million07/22/2025$17.92$18.46+3.01%$18.55$18.0643,898 shs$280.96 million07/21/2025$17.59$17.92+1.88%$18.08$17.5435,668 shs$272.74 million07/18/2025$17.97$17.59-2.11%$18.30$17.4937,797 shs$267.72 million07/17/2025$17.61$17.97+2.04%$18.38$17.4164,146 shs$273.45 million07/16/2025$17.82$17.61-1.18%$17.91$17.4078,255 shs$268.02 million07/15/2025$17.83$17.82-0.06%$18.25$17.8078,869 shs$271.17 million07/14/2025$18.11$17.83-1.55%$18.18$17.6738,211 shs$271.32 million Related Companies AT&T Stock Price Chart Verizon Communications Stock Price Chart Lumen Technologies Stock Price Chart IDT Stock Price Chart Nexxen International Stock Price Chart Spok Stock Price Chart Old Market Capital Stock Price Chart Siyata Mobile Stock Price Chart Cambium Networks Stock Price Chart T-Mobile US Stock Price Chart Receive ATNI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ATN International and its competitors with MarketBeat's FREE daily newsletter. 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