Gatekeeper Systems (GSI) Stock Chart & Stock Price History C$1.57 +0.02 (+1.29%) As of 03:59 PM Eastern Add Compare Share Share Chart Stock AnalysisChartHeadlinesBuy This Stock Gatekeeper Systems Stock Price Performance The Gatekeeper Systems (GSI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 217.17%, with a year-to-date return of 175.44%. In the past month, the stock has increased 18.94%, reflecting recent market activity. As of the latest close, Gatekeeper Systems traded at C$1.55 with a market cap of C$145.26 million and volume of 359,255 shares. Five years ago, the stock traded at C$0.90, representing a 74.44% increase over that period. At the time, it had a market cap of C$20.87 million and a volume of 1.30 million shares. Receive GSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Gatekeeper Systems 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+20.77%1 Month Performance+18.94%3 Month Performance+166.10%Year-To-Date Performance+175.44%1 Year Performance+217.17%5 Year Performance+74.44% GSI Stock Chart for Thursday, August, 28, 2025 GSI Chart by TradingView Gatekeeper Systems 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 Capitalization08/28/2025C$1.55C$1.57+1.29%C$1.59C$1.49178,388 shsC$147.14 million08/27/2025C$1.48C$1.55+5.08%C$1.58C$1.47359,255 shsC$145.26 million08/26/2025C$1.35C$1.48+9.26%C$1.50C$1.38426,758 shsC$138.23 million08/25/2025C$1.30C$1.35+3.85%C$1.39C$1.30295,590 shsC$126.52 million08/22/2025C$1.28C$1.30+1.96%C$1.34C$1.3069,762 shsC$121.83 million08/21/2025C$1.32C$1.28-3.41%C$1.32C$1.26125,781 shsC$119.49 million08/20/2025C$1.30C$1.32+1.54%C$1.34C$1.24183,931 shsC$123.71 million08/19/2025C$1.33C$1.30-2.26%C$1.39C$1.30163,894 shsC$121.83 million08/18/2025C$1.34C$1.33-0.37%C$1.35C$1.28104,704 shsC$124.64 million08/15/2025C$1.40C$1.34-4.30%C$1.42C$1.33235,349 shsC$125.11 million Get the Latest News and Ratings for GSI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Gatekeeper Systems and its competitors with MarketBeat's FREE daily newsletter. 08/14/2025C$1.43C$1.40-2.11%C$1.43C$1.3863,609 shsC$130.74 million08/13/2025C$1.48C$1.43-3.72%C$1.49C$1.38162,265 shsC$133.55 million08/12/2025C$1.50C$1.48-1.33%C$1.50C$1.42225,143 shsC$138.70 million08/11/2025C$1.44C$1.50+4.17%C$1.51C$1.40521,807 shsC$140.58 million08/08/2025C$1.35C$1.44+6.67%C$1.48C$1.32594,608 shsC$134.95 million08/07/2025C$1.36C$1.35-0.74%C$1.35C$1.29232,093 shsC$126.52 million08/06/2025C$1.37C$1.36-0.73%C$1.38C$1.34239,687 shsC$127.46 million08/05/2025C$1.31C$1.37+4.58%C$1.41C$1.27376,342 shsC$128.39 million08/04/2025C$1.31C$1.31C$1.33C$1.16567,190 shsC$122.77 million08/01/2025C$1.25C$1.31+4.80%C$1.33C$1.16567,190 shsC$122.77 million07/31/2025C$1.30C$1.25-3.85%C$1.30C$1.24411,202 shsC$117.15 million07/30/2025C$1.31C$1.30-0.76%C$1.31C$1.27258,789 shsC$121.83 million07/29/2025C$1.32C$1.31-0.76%C$1.32C$1.28155,013 shsC$122.77 million07/28/2025C$1.35C$1.32-2.22%C$1.35C$1.29187,069 shsC$123.71 million Related Companies ZDC Stock Chart XX Stock Chart PTE Stock Chart KBL Stock Chart NPS Stock Chart FTG Stock Chart DRX Stock Chart VLN Stock Chart BUI Stock Chart DE Stock Chart Receive GSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Gatekeeper Systems and its competitors with MarketBeat's FREE daily newsletter. 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