Kosmos Energy (KOS) Stock Chart & Stock Price History GBX 135 +2.50 (+1.89%) As of 04:26 AM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsEarningsHeadlinesBuy This Stock Kosmos Energy Stock Price Performance The Kosmos Energy (KOS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 57.68%, with a year-to-date return of -52.80%. In the past month, the stock has increased 7.14%, reflecting recent market activity. As of the latest close, Kosmos Energy traded at GBX 133 with a market cap of £636.08 million and volume of 4,000 shares. Five years ago, the stock traded at GBX 97.50, representing a 38.46% increase over that period. At the time, it had a market cap of £395.28 million and a volume of 9,885 shares. Receive KOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Kosmos Energy and its competitors with MarketBeat's FREE daily newsletter. 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Read our full terms of service and privacy policy. 5 Day Performance+10.66%1 Month Performance+7.14%3 Month Performance-17.05%Year-To-Date Performance-52.80%1 Year Performance-57.68%5 Year Performance+38.46% KOS Stock Chart for Friday, September, 19, 2025 KOS Chart by TradingView Kosmos Energy 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 Capitalization09/18/2025GBX 131.10GBX 133+1.45%GBX 133GBX 1324,000 shs£636.08 million09/17/2025GBX 118GBX 131.10+11.10%GBX 131.10GBX 12416,834 shs£626.99 million09/16/2025GBX 123GBX 118-4.07%GBX 119.20GBX 1181,003 shs£564.34 million09/15/2025GBX 122GBX 123+0.82%GBX 126GBX 1221,767 shs£588.25 million09/12/2025GBX 120.20GBX 122+1.50%GBX 124GBX 120190 shs£583.47 million09/11/2025GBX 121GBX 120.20-0.66%GBX 123GBX 120.2011,747 shs£574.86 million09/10/2025GBX 120GBX 121+0.83%GBX 122GBX 1211,200 shs£578.69 million09/09/2025GBX 126GBX 120-4.76%GBX 120GBX 1201,999 shs£573.91 million09/08/2025GBX 132.50GBX 126-4.91%GBX 134GBX 1243,012 shs£602.60 million09/05/2025GBX 135.30GBX 132.50-2.07%GBX 135.30GBX 132.50366 shs£633.36 million Get the Latest News and Ratings for KOS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Kosmos Energy and its competitors with MarketBeat's FREE daily newsletter. 09/04/2025GBX 135.30GBX 135.30GBX 135.30GBX 135.30366 shs£646.75 million09/03/2025GBX 129GBX 135.30+4.88%GBX 135.30GBX 135.30366 shs£646.75 million09/02/2025GBX 135.30GBX 129-4.66%GBX 136GBX 12917 shs£616.63 million09/01/2025GBX 132.50GBX 135.30+2.11%GBX 135.30GBX 1294,343 shs£646.75 million08/29/2025GBX 133GBX 133GBX 145GBX 13313,083 shs£814.82 million08/28/2025GBX 136GBX 133-2.21%GBX 145GBX 13313,083 shs£814.82 million08/27/2025GBX 136.54GBX 136-0.39%GBX 136GBX 1367,014 shs£833.20 million08/26/2025GBX 135GBX 136.54+1.14%GBX 142GBX 136.546,085 shs£836.49 million08/25/2025GBX 135GBX 135GBX 135GBX 12610,907 shs£827.07 million08/22/2025GBX 126GBX 135+7.14%GBX 135GBX 12610,907 shs£827.07 million08/21/2025GBX 126GBX 126GBX 127GBX 1264,091 shs£771.93 million08/20/2025GBX 126GBX 126GBX 126GBX 11910,283 shs£771.93 million08/19/2025GBX 124.24GBX 126+1.42%GBX 129GBX 11813,963 shs£771.93 million08/18/2025GBX 128GBX 124.24-2.94%GBX 136GBX 124.2424,404 shs£761.15 million Related Companies TTE Stock Chart DEC Stock Chart GTE Stock Chart EOG Stock Chart SUN Stock Chart NOG Stock Chart VAL Stock Chart EQT Stock Chart WTI Stock Chart SHEL Stock Chart Receive KOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Kosmos Energy and its competitors with MarketBeat's FREE daily newsletter. 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