Spero Therapeutics (SPRO) Stock Chart & Stock Price History $0.90 +0.08 (+9.97%) Closing price 04:00 PM EasternExtended Trading$0.88 -0.01 (-1.56%) As of 07:54 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Spero Therapeutics Stock Price Performance 5 Day Performance+15.61%1 Month Performance+12.71%3 Month Performance-4.11%6 Month Performance-29.77%Year-To-Date Performance-12.72%1 Year Performance-46.80% Receive SPRO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Spero Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address SPRO Stock Chart for Tuesday, March, 25, 2025 SPRO Chart by TradingViewRemove Ads Spero Therapeutics Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization03/25/2025$0.82$0.90+9.97%$0.92$0.81158,774 shs$49.01 million03/24/2025$0.82$0.82-0.57%$0.92$0.80436,097 shs$44.57 million03/21/2025$0.78$0.82+5.74%$0.83$0.76130,510 shs$44.83 million03/20/2025$0.77$0.78+1.65%$0.78$0.7642,455 shs$42.39 million03/19/2025$0.75$0.77+1.67%$0.77$0.7547,762 shs$41.71 million03/18/2025$0.77$0.75-2.40%$0.78$0.7525,250 shs$41.02 million03/17/2025$0.78$0.77-1.47%$0.78$0.7625,959 shs$42.03 million03/14/2025$0.79$0.78-0.33%$0.80$0.7717,820 shs$42.66 million03/13/2025$0.75$0.79+4.86%$0.78$0.7544,946 shs$42.80 million03/12/2025$0.74$0.75+1.53%$0.76$0.7432,313 shs$40.81 million Get the Latest News and Ratings for SPRO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Spero Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 03/11/2025$0.75$0.74-1.95%$0.76$0.73130,307 shs$40.20 million03/10/2025$0.78$0.75-3.47%$0.78$0.7558,241 shs$41.00 million03/07/2025$0.79$0.78-1.14%$0.80$0.77149,286 shs$42.47 million03/06/2025$0.77$0.79+2.31%$0.80$0.77111,694 shs$42.96 million03/05/2025$0.77$0.77+0.09%$0.78$0.74105,562 shs$41.99 million03/04/2025$0.77$0.77-0.08%$0.77$0.75146,937 shs$41.95 million03/03/2025$0.78$0.77-0.71%$0.82$0.77161,720 shs$41.98 million02/28/2025$0.78$0.78-0.55%$0.78$0.7634,178 shs$42.28 million02/27/2025$0.79$0.78-1.83%$0.79$0.7692,156 shs$42.52 million02/26/2025$0.80$0.79-0.40%$0.80$0.7945,140 shs$43.31 million02/25/2025$0.81$0.80-0.93%$0.83$0.7989,402 shs$43.48 million02/24/2025$0.83$0.81-3.12%$0.83$0.78142,172 shs$43.89 million Related Companies MediWound Stock Price Chart Genfit Stock Price Chart Acrivon Therapeutics Stock Price Chart Fulcrum Therapeutics Stock Price Chart RAPT Therapeutics Stock Price Chart Protara Therapeutics Stock Price Chart Puma Biotechnology Stock Price Chart Nanobiotix Stock Price Chart Lyell Immunopharma Stock Price Chart Inhibikase Therapeutics Stock Price Chart Receive SPRO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Spero Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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