C3is (CISS) Stock Chart & Stock Price History $3.17 -0.03 (-0.94%) Closing price 08/1/2025 03:59 PM EasternExtended Trading$3.18 +0.01 (+0.32%) As of 08/1/2025 06:53 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 AnalysisChartCompetitorsEarningsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock C3is Stock Price Performance The C3is (CISS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 83.23%, with a year-to-date return of -62.98%. In the past month, the stock has decreased 4.52%, reflecting recent market activity. As of the latest close, C3is traded at $3.17 with a market cap of $2.24 million and volume of 23,014 shares. 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Email Address 5 Day Performance-4.23%1 Month Performance-4.52%3 Month Performance-17.56%Year-To-Date Performance-62.98%1 Year Performance-83.23% CISS Stock Chart for Saturday, August, 2, 2025 CISS Chart by TradingView C3is 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 Capitalization08/01/2025$3.20$3.17-0.94%$3.22$3.1523,014 shs$2.24 million07/31/2025$3.22$3.20-0.62%$3.24$3.1524,270 shs$2.27 million07/30/2025$3.22$3.22$3.25$3.1610,123 shs$2.29 million07/29/2025$3.31$3.22-2.72%$3.34$3.2015,472 shs$2.28 million07/28/2025$3.35$3.31-1.19%$3.38$3.2720,167 shs$2.35 million07/25/2025$3.51$3.35-4.56%$3.40$3.3014,946 shs$2.38 million07/24/2025$3.51$3.51$3.57$3.4414,636 shs$2.49 million07/23/2025$3.64$3.51-3.57%$3.67$3.4329,195 shs$2.49 million07/22/2025$3.69$3.64-1.36%$3.76$3.5833,798 shs$2.58 million07/21/2025$3.65$3.69+1.10%$3.75$3.4159,231 shs$2.62 million Get the Latest News and Ratings for CISS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for C3is and its competitors with MarketBeat's FREE daily newsletter. 07/18/2025$3.64$3.65+0.27%$3.77$3.5815,751 shs$2.59 million07/17/2025$3.51$3.64+3.70%$3.78$3.5247,298 shs$2.58 million07/16/2025$3.48$3.51+0.86%$3.99$3.30168,799 shs$2.48 million07/15/2025$3.33$3.48+4.50%$3.55$3.3633,769 shs$2.47 million07/14/2025$3.32$3.33+0.30%$3.59$3.2862,539 shs$2.36 million07/11/2025$3.35$3.32-0.90%$3.36$3.2723,745 shs$2.36 million07/10/2025$3.32$3.35+0.90%$3.43$3.3218,979 shs$2.37 million07/09/2025$3.30$3.32+0.61%$3.44$3.307,660 shs$2.36 million07/08/2025$3.30$3.30$3.49$3.2636,385 shs$2.34 million07/07/2025$3.33$3.30-0.75%$3.36$3.2811,096 shs$2.34 million07/04/2025$3.33$3.33$3.39$3.2512,929 shs$2.36 million07/03/2025$3.32$3.33+0.15%$3.39$3.2512,929 shs$2.36 million07/02/2025$3.37$3.32-1.48%$3.39$3.3012,995 shs$2.35 million07/01/2025$3.28$3.37+2.74%$3.39$3.2512,253 shs$2.39 million Related Companies Jet.AI Stock Chart PS International Group Stock Chart Lakeside Stock Chart Singularity Future Technology Stock Chart OceanPal Stock Chart SQZ Biotechnologies Stock Chart Globavend Stock Chart USD Partners Stock Chart Air T Stock Chart Atlas Stock Chart Receive CISS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for C3is and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:CISS) was last updated on 8/2/2025 by MarketBeat.com Staff From Our PartnersWhy Elon put $51 million into thisA single U.S. company has started producing a “miracle metal” once locked in research labs. Now? They’re qu...True Market Insiders | SponsoredMarket Crash Warning: How to Protect Your Wealth Before August 12thChina tariffs hit August 12—and experts warn a market meltdown may follow. A free guide from American Alter...American Alternative | Sponsored$100 Trillion “AI Metal” Found in American Ghost TownJeff Brown recently traveled to a ghost town in the middle of an American desert… To investigate what could...Brownstone Research | SponsoredOne stock to replace NvidiaI'm a Futurist: Here are 3 stocks better than Nvidia Nvidia's own customers could soon become fierce compet...InvestorPlace | SponsoredMan Who Called Nvidia at $1.10 Says Buy This Now...In 2004, one man called Nvidia before just about anyone knew it existed. 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