Phio Pharmaceuticals (PHIO) Stock Chart & Stock Price History $2.09 +0.02 (+0.97%) Closing price 08/22/2025 04:00 PM EasternExtended Trading$2.07 -0.02 (-0.96%) As of 08/22/2025 07:49 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Phio Pharmaceuticals Stock Price Performance The Phio Pharmaceuticals (PHIO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 35.69%, with a year-to-date return of 16.11%. In the past month, the stock has decreased 17.72%, reflecting recent market activity. As of the latest close, Phio Pharmaceuticals traded at $2.09 with a market cap of $11.97 million and volume of 120,003 shares. Five years ago, the stock traded at a split-adjusted price of $22.05, representing a 90.52% decrease over that period. At the time, it had a market cap of $14.16 million and a volume of 13,367 shares. Receive PHIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Phio Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-2.79%1 Month Performance-17.72%3 Month Performance+19.43%Year-To-Date Performance+16.11%1 Year Performance-35.69%5 Year Performance-90.52% PHIO Stock Chart for Saturday, August, 23, 2025 PHIO Chart by TradingView Phio Pharmaceuticals 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 Capitalization08/22/2025$2.07$2.09+0.97%$2.12$2.00120,003 shs$11.97 million08/21/2025$2.03$2.07+1.97%$2.09$1.96132,757 shs$11.86 million08/20/2025$2.01$2.03+1.00%$2.07$1.91136,791 shs$11.63 million08/19/2025$2.15$2.01-6.51%$2.13$2.00283,362 shs$9.64 million08/18/2025$2.18$2.15-1.38%$2.20$2.0967,551 shs$10.32 million08/15/2025$2.19$2.18-0.46%$2.26$2.05169,047 shs$10.46 million08/14/2025$2.19$2.19$2.29$2.12137,596 shs$10.51 million08/13/2025$2.14$2.19+2.34%$2.24$2.05168,469 shs$10.51 million08/12/2025$2.13$2.14+0.47%$2.18$2.03136,357 shs$10.27 million08/11/2025$2.25$2.13-5.33%$2.26$2.09191,230 shs$10.22 million Get the Latest News and Ratings for PHIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Phio Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$2.25$2.25$2.28$2.20170,942 shs$10.80 million08/07/2025$2.33$2.25-3.43%$2.32$2.19160,374 shs$10.80 million08/06/2025$2.35$2.33-0.85%$2.36$2.26122,654 shs$11.18 million08/05/2025$2.37$2.35-0.84%$2.47$2.31161,970 shs$11.28 million08/04/2025$2.33$2.37+1.72%$2.39$2.28123,736 shs$11.38 million08/01/2025$2.38$2.33-2.10%$2.41$2.27218,759 shs$11.18 million07/31/2025$2.43$2.38-2.06%$2.52$2.32282,753 shs$11.42 million07/30/2025$2.54$2.43-4.33%$2.55$2.41224,672 shs$11.66 million07/29/2025$2.53$2.54+0.40%$2.70$2.40555,329 shs$12.19 million07/28/2025$2.74$2.53-7.66%$2.69$2.461.03 million shs$12.14 million07/25/2025$2.51$2.74+9.16%$3.48$2.5149.42 million shs$13.15 million07/24/2025$2.54$2.51-1.18%$2.58$2.4873,975 shs$12.05 million07/23/2025$2.52$2.54+0.79%$2.57$2.4091,931 shs$12.19 million07/22/2025$2.39$2.52+5.44%$2.54$2.3578,061 shs$12.09 million Related Companies EGRX Stock Chart RENB Stock Chart HYPD Stock Chart EQ Stock Chart CALC Stock Chart LVTX Stock Chart SNTI Stock Chart KLTO Stock Chart RANI Stock Chart AADI Stock Chart Receive PHIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Phio Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 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