Impax Environmental Markets (IEM) Stock Chart & Stock Price History GBX 398 -3.50 (-0.87%) As of 11:55 AM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsDividendEarningsHeadlinesInsider TradesBuy This Stock Impax Environmental Markets Stock Price Performance The Impax Environmental Markets (IEM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 2.71%, with a year-to-date return of 3.71%. In the past month, the stock has increased 1.22%, reflecting recent market activity. As of the latest close, Impax Environmental Markets traded at GBX 398.75 with a market cap of £925.70 million and volume of 1.04 million shares. Five years ago, the stock traded at GBX 353, representing a 12.75% increase over that period. At the time, it had a market cap of £869.71 million and a volume of 345,677 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+0.38%1 Month Performance+1.22%3 Month Performance+9.06%Year-To-Date Performance+3.71%1 Year Performance+2.71%5 Year Performance+12.75% IEM Stock Chart for Tuesday, August, 26, 2025 IEM Chart by TradingView Impax Environmental Markets 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 Capitalization08/25/2025GBX 398.75GBX 398.75GBX 402.14GBX 392.501.04 million shs£925.70 million08/22/2025GBX 396.50GBX 398.75+0.57%GBX 402.14GBX 392.501.04 million shs£925.70 million08/21/2025GBX 395GBX 396.50+0.38%GBX 397GBX 388.50321,586 shs£920.47 million08/20/2025GBX 395.75GBX 395-0.19%GBX 396GBX 393.50843,866 shs£916.99 million08/19/2025GBX 394GBX 395.75+0.44%GBX 398GBX 392.50429,526 shs£918.73 million08/18/2025GBX 396.90GBX 394-0.73%GBX 396GBX 392.50281,455 shs£914.67 million08/15/2025GBX 397.50GBX 396.90-0.15%GBX 399GBX 390.50626,380 shs£921.40 million08/14/2025GBX 396GBX 397.50+0.38%GBX 397.50GBX 391.50287,864 shs£922.79 million08/13/2025GBX 393GBX 396+0.76%GBX 397.50GBX 386.50725,306 shs£919.31 million08/12/2025GBX 392GBX 393+0.26%GBX 393.50GBX 386.50343,391 shs£912.35 million Get the Latest News and Ratings for IEM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Impax Environmental Markets and its competitors with MarketBeat's FREE daily newsletter. 08/11/2025GBX 393.50GBX 392-0.38%GBX 396GBX 391272,326 shs£910.03 million08/08/2025GBX 397GBX 393.50-0.88%GBX 396.24GBX 393.20414,288 shs£913.51 million08/07/2025GBX 397GBX 397GBX 398GBX 394.52441,941 shs£921.63 million08/06/2025GBX 395GBX 397+0.51%GBX 398.50GBX 391.52606,142 shs£921.63 million08/05/2025GBX 395.17GBX 395-0.04%GBX 398GBX 392.501.13 million shs£916.99 million08/04/2025GBX 391.50GBX 395.17+0.94%GBX 396GBX 390424,633 shs£917.39 million08/01/2025GBX 398.90GBX 391.50-1.85%GBX 400GBX 390583,591 shs£908.87 million07/31/2025GBX 396.33GBX 398.90+0.65%GBX 401.52GBX 395430,762 shs£926.04 million07/30/2025GBX 397.50GBX 396.33-0.29%GBX 397.50GBX 395.43514,282 shs£920.08 million07/29/2025GBX 394.67GBX 397.50+0.72%GBX 398.76GBX 394.50487,607 shs£922.79 million07/28/2025GBX 393.21GBX 394.67+0.37%GBX 398.50GBX 393.50404,828 shs£916.23 million07/25/2025GBX 392GBX 393.21+0.31%GBX 394.50GBX 390.60476,593 shs£912.84 million Related Companies abrdn Stock Price Chart Petershill Partners Stock Price Chart 3i Infrastructure Stock Price Chart JPMorgan Global Growth & Income Stock Price Chart RIT Capital Partners Stock Price Chart Burford Capital Stock Price Chart Bridgepoint Group Stock Price Chart Monks Stock Price Chart HarbourVest Global Private Equity Stock Price Chart City of London Stock Price Chart Receive IEM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Impax Environmental Markets and its competitors with MarketBeat's FREE daily newsletter. 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