Portman Ridge Finance (PTMN) Stock Chart & Stock Price History $11.17 -0.16 (-1.41%) As of 10/10/2025 Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Portman Ridge Finance Stock Price Performance The Portman Ridge Finance (PTMN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 38.79%, with a year-to-date return of -31.64%. In the past month, the stock has decreased 8.44%, reflecting recent market activity. As of the latest close, Portman Ridge Finance traded at $11.33 with a market cap of $149.47 million and volume of 70,509 shares. Five years ago, the stock traded at a split-adjusted price of $13.50, representing a 17.26% decrease over that period. At the time, it had a market cap of $60.07 million and a volume of 36,231 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-3.29%1 Month Performance-8.44%3 Month Performance-12.39%Year-To-Date Performance-31.64%1 Year Performance-38.79%5 Year Performance-17.26% PTMN Stock Chart for Monday, October, 13, 2025 PTMN Chart by TradingView Portman Ridge 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 Capitalization10/13/2025$11.17$11.17$11.48$11.1259,950 shs$147.36 million10/10/2025$11.59$11.33-2.24%$11.68$11.2970,509 shs$149.47 million10/09/2025$11.55$11.59+0.35%$11.69$11.5431,194 shs$152.90 million10/08/2025$11.70$11.55-1.28%$11.77$11.5370,402 shs$152.37 million10/07/2025$11.81$11.70-0.93%$11.84$11.6757,811 shs$154.35 million10/06/2025$11.81$11.81$11.85$11.5040,992 shs$155.80 million10/03/2025$11.66$11.50-1.37%$11.65$11.5047,893 shs$151.71 million10/02/2025$11.53$11.66+1.13%$11.75$11.5247,286 shs$153.82 million10/01/2025$11.61$11.53-0.69%$11.83$11.5053,941 shs$152.10 million09/30/2025$11.92$11.61-2.60%$11.92$11.5557,093 shs$153.16 million Get the Latest News and Ratings for PTMN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Portman Ridge Finance and its competitors with MarketBeat's FREE daily newsletter. 09/29/2025$11.92$11.92$12.09$11.90100,080 shs$157.25 million09/26/2025$12.12$12.05-0.58%$12.14$11.9538,411 shs$158.96 million09/25/2025$12.14$12.12-0.16%$12.35$12.0376,668 shs$159.89 million09/24/2025$12.10$12.14+0.33%$12.24$12.0855,381 shs$160.15 million09/23/2025$12.12$12.10-0.17%$12.37$12.1055,474 shs$159.62 million09/22/2025$12.12$12.12$12.42$12.12143,621 shs$159.89 million09/19/2025$12.06$12.30+1.99%$12.35$12.0353,225 shs$162.26 million09/18/2025$11.96$12.06+0.84%$12.16$11.9363,501 shs$159.10 million09/17/2025$12.09$11.96-1.08%$12.11$11.9157,098 shs$157.78 million09/16/2025$12.09$12.09$12.15$12.0193,358 shs$159.49 million09/15/2025$12.09$12.09$12.25$12.0542,386 shs$159.49 million09/12/2025$12.31$12.20-0.89%$12.35$12.1931,923 shs$160.94 million Related Companies DSU Stock Price Chart PEO Stock Price Chart RMT Stock Price Chart ECC Stock Price Chart CION Stock Price Chart TYG Stock Price Chart IFN Stock Price Chart HQL Stock Price Chart EVN Stock Price Chart MCI Stock Price Chart Receive PTMN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Portman Ridge Finance and its competitors with MarketBeat's FREE daily newsletter. 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