Hydro One (HRNNF) Stock Chart & Stock Price History $36.19 +0.69 (+1.94%) As of 03:37 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartHeadlinesSEC FilingsShort InterestBuy This Stock Hydro One Stock Price Performance The Hydro One (HRNNF) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 12.32%, with a year-to-date return of 18.39%. In the past month, the stock has increased 2.17%, reflecting recent market activity. As of the latest close, Hydro One traded at $35.50 with a market cap of and volume of 918 shares. Five years ago, the stock traded at $21.82, representing a 65.83% increase over that period. At the time, it had a market cap of and a volume of 473 shares. Receive HRNNF Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Hydro One 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+0.95%1 Month Performance+2.17%3 Month Performance+0.36%Year-To-Date Performance+18.39%1 Year Performance+12.32%5 Year Performance+65.83% HRNNF Stock Chart for Friday, October, 10, 2025 HRNNF Chart by TradingView Hydro One 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 Capitalization10/09/2025$35.33$35.50+0.48%$35.53$35.41918 shs$0.0010/08/2025$35.48$35.33-0.42%$35.78$35.333,006 shs$0.0010/07/2025$35.48$35.48$35.60$35.48796 shs$0.0010/06/2025$35.85$35.48-1.03%$35.60$35.48796 shs$0.0010/03/2025$35.40$35.85+1.27%$35.89$35.85540 shs$0.0010/02/2025$35.40$35.40$35.62$35.403,557 shs$0.0010/01/2025$35.32$35.40+0.23%$35.62$35.403,557 shs$0.0009/30/2025$35.32$35.32$35.32$35.3111,847 shs$0.0009/29/2025$35.27$35.32+0.14%$35.32$35.3111,847 shs$0.0009/26/2025$35.53$35.27-0.73%$35.41$35.2457,785 shs$0.00 Get the Latest News and Ratings for HRNNF and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Hydro One and its competitors with MarketBeat's FREE daily newsletter. 09/25/2025$35.53$35.53$35.56$35.3347,183 shs$0.0009/24/2025$35.28$35.53+0.72%$35.56$35.3347,183 shs$0.0009/23/2025$35.32$35.28-0.13%$35.28$35.2419,867 shs$0.0009/22/2025$35.36$35.32-0.10%$35.45$35.3116,519 shs$0.0009/19/2025$35.12$35.36+0.67%$35.36$35.30140,857 shs$0.0009/18/2025$35.44$35.12-0.90%$35.12$35.12312,600 shs$0.0009/17/2025$35.40$35.44+0.11%$35.51$35.3451,901 shs$0.0009/16/2025$35.44$35.40-0.11%$35.40$35.404,864 shs$0.0009/15/2025$35.45$35.44-0.03%$35.44$35.4341,436 shs$0.0009/12/2025$35.45$35.45$35.45$35.453,713 shs$0.0009/11/2025$35.42$35.45+0.08%$35.45$35.43906 shs$0.0009/10/2025$35.86$35.42-1.23%$35.42$35.4221,138 shs$0.0009/09/2025$35.86$35.86$35.89$35.86112,011 shs$0.00 Related Companies BRLXF Stock Chart CDZIP Stock Chart CZAVF Stock Chart CGEI Stock Chart CHNGQ Stock Chart CWEN.A Stock Chart CMNR Stock Chart CIG.C Stock Chart ENAKF Stock Chart ELCPF Stock Chart Receive HRNNF Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Hydro One and its competitors with MarketBeat's FREE daily newsletter. 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