Portman Ridge Finance (PTMN) Stock Chart & Stock Price History $12.09 -0.11 (-0.90%) As of 09/12/2025 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 33.68%, with a year-to-date return of -26.01%. In the past month, the stock has decreased 3.28%, reflecting recent market activity. As of the latest close, Portman Ridge Finance traded at $12.20 with a market cap of $160.94 million and volume of 31,923 shares. Five years ago, the stock traded at a split-adjusted price of $12.70, representing a 4.80% decrease over that period. At the time, it had a market cap of $56.51 million and a volume of 109,052 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-0.41%1 Month Performance-3.28%3 Month Performance+4.58%Year-To-Date Performance-26.01%1 Year Performance-33.68%5 Year Performance-4.80% PTMN Stock Chart for Sunday, September, 14, 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 Capitalization09/12/2025$12.31$12.20-0.89%$12.35$12.1931,923 shs$160.94 million09/11/2025$12.21$12.31+0.82%$12.45$12.1763,266 shs$162.39 million09/10/2025$12.14$12.21+0.58%$12.29$12.1454,422 shs$161.07 million09/09/2025$12.15$12.14-0.08%$12.19$12.0863,327 shs$160.15 million09/08/2025$12.15$12.15$12.20$12.0646,134 shs$160.28 million09/05/2025$12.10$12.13+0.25%$12.20$12.0930,499 shs$160.02 million09/04/2025$12.16$12.10-0.49%$12.30$12.0553,079 shs$159.62 million09/03/2025$12.22$12.16-0.49%$12.34$12.1134,010 shs$160.42 million09/02/2025$12.22$12.22$12.30$12.1952,966 shs$161.21 million09/01/2025$12.22$12.22$12.30$12.1952,966 shs$161.21 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. 08/29/2025$12.08$12.12+0.33%$12.40$12.1059,236 shs$159.89 million08/28/2025$12.02$12.08+0.50%$12.18$12.02147,806 shs$159.36 million08/27/2025$12.03$12.02-0.08%$12.34$11.9177,974 shs$158.57 million08/26/2025$12.40$12.03-2.98%$12.40$11.95157,140 shs$158.70 million08/25/2025$12.27$12.40+1.06%$12.47$12.2053,056 shs$163.56 million08/22/2025$12.10$12.27+1.40%$12.47$12.2053,056 shs$161.84 million08/21/2025$12.20$12.10-0.82%$12.25$12.0939,314 shs$159.60 million08/20/2025$12.17$12.20+0.25%$12.45$12.1574,948 shs$160.94 million08/19/2025$12.20$12.17-0.25%$12.31$12.1290,225 shs$160.52 million08/18/2025$12.70$12.20-3.94%$12.54$12.1185,436 shs$160.92 million08/15/2025$12.50$12.70+1.60%$12.75$12.50142,604 shs$116.84 million08/14/2025$12.43$12.50+0.56%$12.60$12.4247,919 shs$115 million08/13/2025$12.45$12.43-0.16%$12.59$12.4033,213 shs$114.39 million Related Companies ECC Stock Price Chart DSU Stock Price Chart PEO Stock Price Chart RMT Stock Price Chart CION Stock Price Chart IFN Stock Price Chart TYG Stock Price Chart MCI Stock Price Chart EVN Stock Price Chart HQL 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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