TXNM Energy (TXNM) Stock Chart & Stock Price History $56.64 +0.14 (+0.24%) Closing price 08/29/2025 03:59 PM EasternExtended Trading$56.65 +0.01 (+0.02%) As of 08/29/2025 04:20 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 FilingsTrendsBuy This Stock TXNM Energy Stock Price Performance The TXNM Energy (TXNM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 38.20%, with a year-to-date return of 15.18%. In the past month, the stock has decreased 0.01%, reflecting recent market activity. As of the latest close, TXNM Energy traded at $56.64 with a market cap of $5.97 billion and volume of 643,600 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-0.28%1 Month Performance-0.01%3 Month Performance-0.06%Year-To-Date Performance+15.18%1 Year Performance+38.20% TXNM Stock Chart for Saturday, August, 30, 2025 TXNM Chart by TradingView TXNM Energy 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$56.53$56.64+0.20%$56.69$56.50643,600 shs$5.97 billion08/28/2025$56.66$56.53-0.23%$56.79$56.50943,974 shs$5.96 billion08/27/2025$56.73$56.66-0.12%$56.84$56.65885,866 shs$5.97 billion08/26/2025$56.80$56.73-0.12%$56.80$56.62681,616 shs$5.98 billion08/25/2025$56.73$56.80+0.12%$56.94$56.53878,574 shs$5.99 billion08/22/2025$56.57$56.73+0.28%$56.81$56.511.24 million shs$5.98 billion08/21/2025$56.54$56.57+0.06%$56.64$56.49661,161 shs$5.96 billion08/20/2025$56.68$56.54-0.25%$56.80$56.511.53 million shs$5.96 billion08/19/2025$56.63$56.68+0.08%$56.75$56.521.96 million shs$5.97 billion08/18/2025$56.82$56.63-0.34%$56.93$56.541.22 million shs$5.97 billion Get the Latest News and Ratings for TXNM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for TXNM Energy and its competitors with MarketBeat's FREE daily newsletter. 08/15/2025$56.94$56.82-0.21%$57.09$56.581.35 million shs$5.99 billion08/14/2025$57.10$56.94-0.28%$57.07$56.85657,251 shs$6.00 billion08/13/2025$57.05$57.10+0.10%$57.20$56.981.01 million shs$6.02 billion08/12/2025$57.01$57.05+0.07%$57.16$56.901.05 million shs$6.01 billion08/11/2025$56.73$57.01+0.49%$57.03$56.72958,409 shs$6.01 billion08/08/2025$57.10$56.73-0.65%$56.82$56.501.32 million shs$5.98 billion08/07/2025$57.03$57.10+0.12%$57.12$56.991.20 million shs$6.02 billion08/06/2025$56.87$57.03+0.27%$57.10$56.801.29 million shs$6.01 billion08/05/2025$57.08$56.87-0.36%$57.14$56.681.49 million shs$5.99 billion08/04/2025$56.70$57.08+0.66%$57.13$56.701.22 million shs$6.01 billion08/01/2025$56.76$56.70-0.11%$56.90$56.511.15 million shs$5.98 billion07/31/2025$56.64$56.76+0.21%$57.00$56.59821,298 shs$5.98 billion07/30/2025$56.79$56.64-0.26%$57.04$56.60965,105 shs$5.97 billion07/29/2025$56.83$56.79-0.08%$57.00$56.551.22 million shs$5.98 billion07/28/2025$57.10$56.83-0.47%$57.12$56.741.88 million shs$5.99 billion Related Companies EBR Stock Chart KEP Stock Chart TLN Stock Chart LNT Stock Chart EVRG Stock Chart SBS Stock Chart WES Stock Chart WTRG Stock Chart DTM Stock Chart OKLO Stock Chart Receive TXNM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for TXNM Energy and its competitors with MarketBeat's FREE daily newsletter. 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