Portman Ridge Finance (PTMN) Stock Chart & Stock Price History $12.08 +0.06 (+0.50%) As of 08/27/2025 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 34.67%, with a year-to-date return of -26.07%. In the past month, the stock has decreased 2.82%, reflecting recent market activity. As of the latest close, Portman Ridge Finance traded at $12.08 with a market cap of $159.36 million and volume of 147,806 shares. Five years ago, the stock traded at a split-adjusted price of $11.90, representing a 1.51% increase over that period. At the time, it had a market cap of $51.17 million and a volume of 249,964 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-1.55%1 Month Performance-2.82%3 Month Performance0.00%Year-To-Date Performance-26.07%1 Year Performance-34.67%5 Year Performance+1.51% PTMN Stock Chart for Friday, August, 29, 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 Capitalization08/28/2025$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 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. 08/14/2025$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 million08/12/2025$12.35$12.45+0.81%$12.59$12.3343,659 shs$114.54 million08/11/2025$12.34$12.35+0.08%$12.57$12.3143,250 shs$113.62 million08/08/2025$12.25$12.34+0.73%$12.45$12.2963,626 shs$113.53 million08/07/2025$12.41$12.25-1.29%$12.36$12.1643,627 shs$112.74 million08/06/2025$12.14$12.41+2.22%$12.45$12.1547,579 shs$114.17 million08/05/2025$12.27$12.14-1.06%$12.31$12.1455,229 shs$111.69 million08/04/2025$12.24$12.27+0.25%$12.32$12.1817,854 shs$112.92 million08/01/2025$12.20$12.24+0.33%$12.24$12.1528,689 shs$112.65 million07/31/2025$12.30$12.20-0.81%$12.45$12.1943,881 shs$112.24 million07/30/2025$12.43$12.30-1.05%$12.58$12.3038,966 shs$113.16 million07/29/2025$12.48$12.43-0.40%$12.61$12.4221,508 shs$114.39 million07/28/2025$12.60$12.48-0.95%$12.62$12.4540,749 shs$114.82 million Related Companies PDT Stock Price Chart DSU Stock Price Chart PEO Stock Price Chart CION Stock Price Chart ECC Stock Price Chart RMT Stock Price Chart IFN Stock Price Chart TYG 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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