Thermon Group (THR) Stock Chart & Stock Price History $26.41 -0.44 (-1.65%) Closing price 03:59 PM EasternExtended Trading$26.46 +0.06 (+0.22%) As of 05:28 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 AnalysisChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Thermon Group Stock Price Performance The Thermon Group (THR) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 12.68%, with a year-to-date return of -8.22%. In the past month, the stock has decreased 6.76%, reflecting recent market activity. As of the latest close, Thermon Group traded at $26.86 with a market cap of $887.99 million and volume of 158,800 shares. Five years ago, the stock traded at $13.32, representing a 98.24% increase over that period. At the time, it had a market cap of $446.78 million and a volume of 169,863 shares. Receive THR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Thermon Group and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy 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. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance-1.18%1 Month Performance-6.76%3 Month Performance+2.67%Year-To-Date Performance-8.22%1 Year Performance-12.68%5 Year Performance+98.24% THR Stock Chart for Thursday, August, 28, 2025 THR Chart by TradingView Thermon Group 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 Capitalization08/27/2025$26.64$26.86+0.82%$26.90$26.40158,800 shs$887.99 million08/26/2025$26.05$26.64+2.25%$26.68$26.00142,728 shs$880.62 million08/25/2025$26.72$26.05-2.50%$26.71$25.97171,981 shs$861.28 million08/22/2025$25.10$26.72+6.44%$26.79$25.31219,540 shs$883.36 million08/21/2025$25.05$25.10+0.23%$25.25$24.72129,396 shs$830.03 million08/20/2025$25.33$25.05-1.14%$25.41$24.88223,196 shs$827.99 million08/19/2025$25.66$25.33-1.27%$26.06$25.30168,193 shs$837.51 million08/18/2025$25.26$25.66+1.58%$25.75$25.19198,985 shs$848.32 million08/15/2025$25.30$25.26-0.15%$25.63$25.09225,374 shs$835.10 million08/14/2025$25.99$25.30-2.67%$25.68$25.07213,305 shs$836.45 million Get the Latest News and Ratings for THR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Thermon Group and its competitors with MarketBeat's FREE daily newsletter. 08/13/2025$25.64$25.99+1.37%$26.46$25.74304,538 shs$859.23 million08/12/2025$24.73$25.64+3.68%$25.79$24.86401,277 shs$847.63 million08/11/2025$24.07$24.73+2.76%$25.16$24.23351,998 shs$822.10 million08/08/2025$25.15$24.07-4.31%$25.20$23.86258,927 shs$799.99 million08/07/2025$28.24$25.15-10.93%$27.09$24.33395,473 shs$835.99 million08/06/2025$28.41$28.24-0.60%$28.41$28.03183,952 shs$938.60 million08/05/2025$27.88$28.41+1.89%$28.45$27.72172,526 shs$944.33 million08/04/2025$27.34$27.88+1.98%$27.90$27.49149,621 shs$926.73 million08/01/2025$28.27$27.34-3.29%$28.01$27.17144,895 shs$908.78 million07/31/2025$28.22$28.27+0.18%$28.84$27.91123,168 shs$939.70 million07/30/2025$28.48$28.22-0.90%$28.71$28.02132,067 shs$938.12 million07/29/2025$28.32$28.48+0.55%$28.63$28.20114,991 shs$946.51 million07/28/2025$28.13$28.32+0.66%$28.41$27.42130,376 shs$941.36 million Related Companies POWL Stock Chart AMSC Stock Chart VICR Stock Chart PLPC Stock Chart LYTS Stock Chart FCEL Stock Chart ETN Stock Chart EMR Stock Chart ROP Stock Chart AME Stock Chart Receive THR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Thermon Group and its competitors with MarketBeat's FREE daily newsletter. 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