ioneer (IONR) Stock Chart & Stock Price History $3.16 +0.01 (+0.32%) Closing price 08/29/2025 03:56 PM EasternExtended Trading$3.14 -0.03 (-0.79%) As of 08/29/2025 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 AnalysisChartCompetitorsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock ioneer Stock Price Performance The ioneer (IONR) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 28.34%, with a year-to-date return of -20.80%. In the past month, the stock has increased 11.27%, reflecting recent market activity. As of the latest close, ioneer traded at $3.16 with a market cap of and volume of 12,648 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-3.81%1 Month Performance+11.27%3 Month Performance-5.11%Year-To-Date Performance-20.80%1 Year Performance-28.34% IONR Stock Chart for Sunday, August, 31, 2025 IONR Chart by TradingView ioneer 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 Capitalization08/29/2025$3.15$3.16+0.32%$3.17$3.0712,648 shs$0.0008/28/2025$3.30$3.15-4.55%$3.22$3.1214,185 shs$0.0008/27/2025$3.29$3.30+0.46%$3.32$3.1910,499 shs$0.0008/26/2025$3.17$3.29+3.63%$3.28$3.1713,211 shs$0.0008/25/2025$3.25$3.17-2.46%$3.25$3.1033,980 shs$0.0008/22/2025$3.23$3.25+0.62%$3.29$3.1618,723 shs$0.0008/21/2025$3.20$3.23+0.94%$3.38$3.1918,789 shs$0.0008/20/2025$3.18$3.20+0.63%$3.37$3.1522,652 shs$0.0008/19/2025$3.38$3.18-5.92%$3.37$3.1112,217 shs$0.0008/18/2025$3.34$3.38+1.20%$3.39$3.1616,768 shs$0.00 Get the Latest News and Ratings for IONR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ioneer and its competitors with MarketBeat's FREE daily newsletter. 08/15/2025$3.33$3.34+0.45%$3.45$3.2516,310 shs$0.0008/14/2025$3.39$3.33-1.77%$3.38$3.208,174 shs$0.0008/13/2025$3.37$3.39+0.45%$3.72$3.2814,553 shs$0.0008/12/2025$3.53$3.37-4.53%$3.78$3.3429,565 shs$0.0008/11/2025$3.19$3.53+10.66%$3.80$3.1396,005 shs$0.0008/08/2025$3.10$3.19+2.90%$3.19$2.9911,580 shs$0.0008/07/2025$2.93$3.10+5.80%$3.12$2.908,823 shs$0.0008/06/2025$2.98$2.93-1.68%$3.07$2.956,929 shs$0.0008/05/2025$2.97$2.98+0.51%$3.22$2.963,082 shs$0.0008/04/2025$2.96$2.97+0.34%$3.20$2.918,905 shs$0.0008/01/2025$2.84$2.96+4.05%$2.95$2.815,700 shs$0.0007/31/2025$2.91$2.84-2.41%$3.05$2.8018,062 shs$0.0007/30/2025$3.17$2.91-8.20%$3.18$2.7359,588 shs$0.00 Related Companies TMC the metals Stock Price Chart BHP Group Stock Price Chart Vale Stock Price Chart Cameco Stock Price Chart Teck Resources Stock Price Chart Sociedad Quimica y Minera Stock Price Chart MP Materials Stock Price Chart Knife River Stock Price Chart HudBay Minerals Stock Price Chart New Gold Stock Price Chart Receive IONR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ioneer and its competitors with MarketBeat's FREE daily newsletter. 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