Glaukos (GKOS) Stock Chart & Stock Price History $120.95 +0.72 (+0.60%) Closing price 05/22/2026 03:59 PM EasternExtended Trading$119.97 -0.98 (-0.81%) As of 05/22/2026 07:48 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 Massive. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Glaukos Stock Price Performance The Glaukos (GKOS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 25.70%, with a year-to-date return of 7.23%. In the past month, the stock has decreased 0.81%, reflecting recent market activity. As of the latest close, Glaukos traded at $120.95 with a market cap of $7.10 billion and volume of 2.71 million shares. Five years ago, the stock traded at $75.00, representing a 61.27% increase over that period. At the time, it had a market cap of $3.47 billion and a volume of 260,998 shares. Receive GKOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Glaukos and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. 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Read our full terms of service and privacy policy. 5 Day Performance-15.90%1 Month Performance-0.81%3 Month Performance-0.24%Year-To-Date Performance+7.23%1 Year Performance+25.70%5 Year Performance+61.27% GKOS Stock Chart for Monday, May, 25, 2026 GKOS Chart by TradingView Glaukos 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 DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/22/2026$139.00$120.95-12.98%$139.43$118.642.71 million shs$7.10 billion05/21/2026$143.82$139.00-3.35%$140.64$133.621.31 million shs$8.16 billion05/20/2026$140.06$143.82+2.68%$146.71$137.83951,682 shs$8.45 billion05/19/2026$142.43$140.06-1.67%$142.85$137.32728,868 shs$8.23 billion05/18/2026$143.53$142.43-0.76%$148.11$141.52814,291 shs$8.37 billion05/15/2026$142.04$143.53+1.04%$144.16$140.91978,750 shs$8.43 billion05/14/2026$137.19$142.04+3.54%$142.20$136.34536,287 shs$8.34 billion05/13/2026$136.43$137.19+0.56%$138.34$133.22490,221 shs$8.06 billion05/12/2026$135.17$136.43+0.94%$137.20$133.11667,105 shs$8.01 billion05/11/2026$133.16$135.17+1.51%$136.26$130.64807,817 shs$7.94 billion Get the Latest News and Ratings for GKOS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Glaukos and its competitors with MarketBeat's FREE daily newsletter. 05/08/2026$134.34$133.16-0.88%$135.26$130.04454,478 shs$7.88 billion05/07/2026$135.68$134.34-0.99%$137.34$132.12549,156 shs$7.89 billion05/06/2026$133.36$135.68+1.74%$136.41$131.35889,288 shs$7.97 billion05/05/2026N/A$133.36$137.87$131.94888,250 shs$7.83 billion04/30/2026$116.94$142.95+22.24%$145.50$130.902.67 million shs$8.37 billion04/29/2026$119.71$116.94-2.31%$120.07$113.001.16 million shs$6.84 billion04/28/2026$121.95$119.71-1.84%$123.05$118.70494,505 shs$7.01 billion04/27/2026$121.94$121.95+0.01%$124.38$120.82802,377 shs$7.14 billion04/24/2026$120.99$121.94+0.78%$122.28$119.03455,023 shs$7.14 billion Related Companies GEHC Stock Price Chart PHG Stock Price Chart ZBH Stock Price Chart SOLV Stock Price Chart PEN Stock Price Chart SNN Stock Price Chart BLCO Stock Price Chart STVN Stock Price Chart LQDA Stock Price Chart LIVN Stock Price Chart Receive GKOS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Glaukos and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:GKOS) was last updated on 5/25/2026 by MarketBeat.com Staff. 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