Montauk Renewables (MNTK) Stock Chart & Stock Price History $2.26 -0.07 (-3.00%) Closing price 04:00 PM EasternExtended Trading$2.31 +0.05 (+2.21%) As of 07:51 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Montauk Renewables Stock Price Performance The Montauk Renewables (MNTK) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 59.43%, with a year-to-date return of -43.22%. In the past month, the stock has increased 13.00%, reflecting recent market activity. As of the latest close, Montauk Renewables traded at $2.33 with a market cap of $331.47 million and volume of 101,752 shares. Receive MNTK Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Montauk Renewables 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. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. 5 Day Performance-8.87%1 Month Performance+13.00%3 Month Performance+0.44%Year-To-Date Performance-43.22%1 Year Performance-59.43% MNTK Stock Chart for Thursday, October, 9, 2025 MNTK Chart by TradingView Montauk Renewables 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 Capitalization10/09/2025$2.33$2.26-3.00%$2.37$2.2388,718 shs$321.51 million10/08/2025$2.17$2.33+7.37%$2.35$2.17101,752 shs$331.47 million10/07/2025$2.28$2.17-4.82%$2.34$2.16115,869 shs$308.70 million10/06/2025$2.48$2.28-8.06%$2.55$2.25541,367 shs$324.35 million10/03/2025$2.02$2.48+22.77%$2.57$2.03874,142 shs$352.81 million10/02/2025$2.06$2.02-1.94%$2.11$2.0082,167 shs$287.37 million10/01/2025$2.01$2.06+2.49%$2.09$1.98141,261 shs$293.05 million09/30/2025$2.04$2.01-1.47%$2.06$1.98102,422 shs$285.94 million09/29/2025$2.02$2.04+0.99%$2.09$2.0274,591 shs$290.21 million09/26/2025$2.07$2.02-2.42%$2.12$2.0187,872 shs$287.37 million Get the Latest News and Ratings for MNTK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Montauk Renewables and its competitors with MarketBeat's FREE daily newsletter. 09/25/2025$2.04$2.07+1.47%$2.11$2.0189,097 shs$294.47 million09/24/2025$2.03$2.04+0.49%$2.11$2.0375,918 shs$290.21 million09/23/2025$2.11$2.03-3.79%$2.20$2.00136,193 shs$288.79 million09/22/2025$2.09$2.11+0.96%$2.15$2.07100,277 shs$300.16 million09/19/2025$2.30$2.09-9.13%$2.32$2.08520,710 shs$297.32 million09/18/2025$2.05$2.30+12.20%$2.32$2.06174,185 shs$327.20 million09/17/2025$2.01$2.05+1.99%$2.19$1.93258,510 shs$291.63 million09/16/2025$1.98$2.01+1.52%$2.04$1.96226,754 shs$285.94 million09/15/2025$2.02$1.98-1.98%$2.02$1.91224,347 shs$281.68 million09/12/2025$2.10$2.02-3.81%$2.09$2.0077,326 shs$287.37 million09/11/2025$2.04$2.10+2.94%$2.12$1.99162,398 shs$298.75 million09/10/2025$2.00$2.04+2.00%$2.06$2.0070,847 shs$290.20 million09/09/2025$2.06$2.00-2.91%$2.06$1.9878,255 shs$284.52 million09/08/2025$2.07$2.06-0.48%$2.08$1.98107,466 shs$293.06 million Related Companies XIFR Stock Price Chart NGL Stock Price Chart EDN Stock Price Chart NFE Stock Price Chart OPAL Stock Price Chart SMC Stock Price Chart GWRS Stock Price Chart PCYO Stock Price Chart RGCO Stock Price Chart OPTT Stock Price Chart Receive MNTK Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Montauk Renewables and its competitors with MarketBeat's FREE daily newsletter. 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