New Mountain Finance (NMFC) Stock Chart & Stock Price History $9.92 -0.55 (-5.25%) Closing price 09/15/2025 04:00 PM EasternExtended Trading$9.98 +0.06 (+0.60%) As of 09/15/2025 07:59 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 FilingsShort InterestTrendsBuy This Stock New Mountain Finance Stock Price Performance The New Mountain Finance (NMFC) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 17.47%, with a year-to-date return of -11.90%. In the past month, the stock has decreased 3.69%, reflecting recent market activity. As of the latest close, New Mountain Finance traded at $9.92 with a market cap of $1.06 billion and volume of 2.14 million shares. Five years ago, the stock traded at $9.97, representing a 0.50% decrease over that period. At the time, it had a market cap of $965.37 million and a volume of 407,165 shares. Receive NMFC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for New Mountain Finance 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. 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Read our full terms of service and privacy policy. 5 Day Performance-5.61%1 Month Performance-3.69%3 Month Performance-2.27%Year-To-Date Performance-11.90%1 Year Performance-17.47%5 Year Performance-0.50% NMFC Stock Chart for Tuesday, September, 16, 2025 NMFC Chart by TradingView New Mountain Finance 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 Capitalization09/15/2025$10.47$9.92-5.25%$10.26$9.912.14 million shs$1.06 billion09/12/2025$10.51$10.47-0.38%$10.54$10.43418,463 shs$1.11 billion09/11/2025$10.47$10.51+0.38%$10.54$10.43434,247 shs$1.12 billion09/10/2025$10.50$10.47-0.29%$10.56$10.42325,827 shs$1.11 billion09/09/2025$10.56$10.50-0.57%$10.59$10.48363,075 shs$1.12 billion09/08/2025$10.62$10.56-0.56%$10.67$10.52308,547 shs$1.12 billion09/05/2025$10.64$10.62-0.19%$10.70$10.56242,018 shs$1.13 billion09/04/2025$10.54$10.64+0.95%$10.64$10.53293,732 shs$1.13 billion09/03/2025$10.54$10.54$10.62$10.52291,081 shs$1.12 billion09/02/2025$10.66$10.54-1.13%$10.63$10.47352,448 shs$1.12 billion Get the Latest News and Ratings for NMFC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for New Mountain Finance and its competitors with MarketBeat's FREE daily newsletter. 09/01/2025$10.66$10.66$10.71$10.52704,865 shs$1.13 billion08/29/2025$10.54$10.66+1.14%$10.71$10.52704,865 shs$1.13 billion08/28/2025$10.46$10.54+0.76%$10.55$10.43741,792 shs$1.12 billion08/27/2025$10.42$10.46+0.38%$10.50$10.40189,646 shs$1.11 billion08/26/2025$10.34$10.42+0.77%$10.43$10.31252,051 shs$1.11 billion08/25/2025$10.39$10.34-0.48%$10.43$10.33475,323 shs$1.10 billion08/22/2025$10.37$10.39+0.19%$10.50$10.37413,282 shs$1.11 billion08/21/2025$10.34$10.37+0.29%$10.39$10.30272,293 shs$1.10 billion08/20/2025$10.40$10.34-0.58%$10.44$10.34376,894 shs$1.10 billion08/19/2025$10.39$10.40+0.10%$10.47$10.37347,950 shs$1.11 billion08/18/2025$10.30$10.39+0.87%$10.43$10.29317,434 shs$1.11 billion08/15/2025$10.36$10.30-0.58%$10.42$10.30427,975 shs$1.10 billion Related Companies ARCC Stock Price Chart GBDC Stock Price Chart MFIC Stock Price Chart OCSL Stock Price Chart PFLT Stock Price Chart SLRC Stock Price Chart TCPC Stock Price Chart BCSF Stock Price Chart MAIN Stock Price Chart TSLX Stock Price Chart Receive NMFC Stock News and Ratings via EmailSign-up to receive the latest news and ratings for New Mountain Finance and its competitors with MarketBeat's FREE daily newsletter. 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