Pennon Group (PNN) Stock Chart & Stock Price History GBX 529 0.00 (0.00%) As of 05/22/2026 12:36 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesBuy This Stock Pennon Group Stock Price Performance The Pennon Group (PNN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 2.92%, with a year-to-date return of 0.28%. In the past month, the stock has decreased 0.38%, reflecting recent market activity. As of the latest close, Pennon Group traded at GBX 529 with a market cap of £2.45 billion and volume of 1.05 million shares. Five years ago, the stock traded at GBX 1,062.50, representing a 50.21% decrease over that period. At the time, it had a market cap of £4.48 billion and a volume of 640,814 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+2.69%1 Month Performance-0.38%3 Month Performance-11.17%Year-To-Date Performance+0.28%1 Year Performance+2.92%5 Year Performance-50.21% PNN Stock Chart for Monday, May, 25, 2026 PNN Chart by TradingView Pennon Group 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 Capitalization05/25/2026GBX 529GBX 529GBX 532GBX 5081.05 million shs£2.50 billion05/22/2026GBX 520.50GBX 529+1.63%GBX 532GBX 5081.05 million shs£2.45 billion05/21/2026GBX 515.14GBX 520.50+1.04%GBX 527GBX 515133.71 million shs£2.46 billion05/20/2026GBX 508.64GBX 515.14+1.28%GBX 520GBX 505.48220.98 million shs£2.43 billion05/19/2026GBX 504GBX 508.64+0.92%GBX 513.50GBX 502.501.16 million shs£2.38 billion05/18/2026GBX 488.40GBX 504+3.19%GBX 504GBX 48297.58 million shs£2.38 billion05/15/2026GBX 533.50GBX 488.40-8.45%GBX 524GBX 4844.02 million shs£2.30 billion05/14/2026GBX 535GBX 533.50-0.28%GBX 541GBX 533639,765 shs£2.52 billion05/13/2026GBX 527GBX 535+1.52%GBX 544GBX 526.501.77 million shs£2.52 billion05/12/2026GBX 536.23GBX 527-1.72%GBX 534.50GBX 5251.54 million shs£2.49 billion Get the Latest News and Ratings for PNN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Pennon Group and its competitors with MarketBeat's FREE daily newsletter. 05/11/2026GBX 538.50GBX 536.23-0.42%GBX 540GBX 531.502.90 million shs£2.53 billion05/08/2026GBX 525.98GBX 538.50+2.38%GBX 542.50GBX 521.501.53 million shs£2.54 billion05/07/2026GBX 529.29GBX 525.98-0.62%GBX 532.50GBX 51899.36 million shs£2.48 billion05/06/2026GBX 527.96GBX 529.29+0.25%GBX 532.50GBX 5234.30 million shs£2.50 billion05/05/2026N/AGBX 527.96GBX 552GBX 523.741.68 million shs£2.49 billion04/30/2026GBX 516.50GBX 549.50+6.39%GBX 559GBX 517.503.09 million shs£2.59 billion04/29/2026GBX 529.85GBX 516.50-2.52%GBX 530GBX 512.50737,590 shs£2.44 billion04/28/2026GBX 526GBX 529.85+0.73%GBX 533GBX 525.504.89 million shs£2.50 billion04/27/2026GBX 531GBX 526-0.94%GBX 526.50GBX 519.504.83 million shs£2.48 billion04/24/2026GBX 529.22GBX 531+0.34%GBX 536.50GBX 522.20426.97 million shs£2.51 billion Related Companies United Utilities Group Stock Chart Severn Trent Stock Chart Centrica Stock Chart Drax Group Stock Chart Greencoat UK Wind Stock Chart Telecom Plus Stock Chart Yü Group Stock Chart Jersey Electricity Stock Chart Invinity Energy Systems Stock Chart Atome Stock Chart Receive PNN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Pennon Group and its competitors with MarketBeat's FREE daily newsletter. This page (LON:PNN) was last updated on 5/25/2026 by MarketBeat.com Staff. 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