ClearSign Technologies (CLIR) Stock Chart & Stock Price History $0.71 +0.00 (+0.06%) Closing price 04:00 PM EasternExtended Trading$0.74 +0.04 (+4.93%) As of 07:56 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock ClearSign Technologies Stock Price Performance The ClearSign Technologies (CLIR) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 5.33%, with a year-to-date return of -50.69%. In the past month, the stock has increased 20.36%, reflecting recent market activity. As of the latest close, ClearSign Technologies traded at $0.71 with a market cap of $37.20 million and volume of 43,769 shares. Five years ago, the stock traded at $0.64, representing a 10.51% increase over that period. At the time, it had a market cap of $13.11 million and a volume of 631,200 shares. Receive CLIR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ClearSign Technologies and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-3.79%1 Month Performance+20.36%3 Month Performance-11.25%Year-To-Date Performance-50.69%1 Year Performance-5.33%5 Year Performance+10.51% CLIR Stock Chart for Wednesday, May, 21, 2025 CLIR Chart by TradingView ClearSign Technologies 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 Capitalization05/21/2025$0.71$0.71+0.06%$0.75$0.6667,103 shs$37.22 million05/20/2025$0.73$0.71-2.79%$0.76$0.6643,769 shs$37.20 million05/19/2025$0.74$0.73-1.08%$0.77$0.65105,684 shs$38.27 million05/16/2025$0.65$0.74+13.91%$0.78$0.65130,045 shs$38.69 million05/15/2025$0.62$0.65+4.50%$0.67$0.6252,499 shs$33.96 million05/14/2025$0.57$0.62+9.17%$0.71$0.57157,396 shs$32.50 million05/13/2025$0.57$0.57-0.80%$0.57$0.5533,747 shs$29.77 million05/12/2025$0.54$0.57+5.08%$0.58$0.5352,607 shs$30.01 million05/09/2025$0.53$0.54+2.73%$0.58$0.5430,865 shs$28.56 million05/08/2025$0.54$0.53-1.87%$0.58$0.5319,563 shs$27.80 million Get the Latest News and Ratings for CLIR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ClearSign Technologies and its competitors with MarketBeat's FREE daily newsletter. 05/07/2025$0.57$0.54-5.03%$0.60$0.5455,261 shs$28.33 million05/06/2025$0.59$0.57-4.35%$0.59$0.5725,820 shs$29.83 million05/05/2025$0.59$0.59+0.49%$0.60$0.5641,244 shs$31.18 million05/02/2025$0.57$0.59+4.30%$0.60$0.5516,079 shs$31.03 million05/01/2025$0.59$0.57-4.22%$0.60$0.5568,569 shs$29.75 million04/30/2025$0.54$0.59+9.05%$0.60$0.5535,062 shs$31.06 million04/29/2025$0.55$0.54-1.47%$0.57$0.5440,915 shs$28.48 million04/28/2025$0.57$0.55-3.25%$0.60$0.5330,687 shs$28.91 million04/25/2025$0.59$0.57-2.91%$0.58$0.52106,509 shs$29.88 million04/24/2025$0.58$0.59+0.89%$0.60$0.52178,145 shs$30.78 million04/23/2025$0.58$0.58+0.33%$0.60$0.5641,432 shs$30.50 million04/22/2025$0.59$0.58-1.68%$0.60$0.5715,447 shs$30.40 million04/21/2025$0.58$0.59+1.67%$0.61$0.5720,354 shs$30.92 million Related Companies RPID Stock Chart SEER Stock Chart NAUT Stock Chart KEQU Stock Chart OWLT Stock Chart ODYS Stock Chart INTT Stock Chart PRE Stock Chart OPXS Stock Chart OMIC Stock Chart Receive CLIR Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ClearSign Technologies and its competitors with MarketBeat's FREE daily newsletter. 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