Symphony Environmental Technologies (SYM) Stock Chart & Stock Price History GBX 9.75 -0.12 (-1.24%) As of 11:35 AM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsEarningsHeadlinesBuy This Stock Symphony Environmental Technologies Stock Price Performance The Symphony Environmental Technologies (SYM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 200.00%, with a year-to-date return of 228.28%. In the past month, the stock has decreased 11.36%, reflecting recent market activity. As of the latest close, Symphony Environmental Technologies traded at GBX 9.87 with a market cap of £23.33 million and volume of 81,541 shares. Five years ago, the stock traded at GBX 28, representing a 65.18% decrease over that period. At the time, it had a market cap of £48.09 million and a volume of 2.49 million shares. 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Read our full terms of service and privacy policy. 5 Day Performance-6.25%1 Month Performance-11.36%3 Month Performance+30.87%Year-To-Date Performance+228.28%1 Year Performance+200.00%5 Year Performance-65.18% SYM Stock Chart for Monday, September, 15, 2025 SYM Chart by TradingView Symphony Environmental Technologies 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 Capitalization09/12/2025GBX 9GBX 9.87+9.69%GBX 10.30GBX 9.1581,541 shs£23.33 million09/11/2025GBX 10.40GBX 9-13.46%GBX 10.40GBX 914,948 shs£21.27 million09/10/2025GBX 10.40GBX 10.40GBX 10.40GBX 9.158,966 shs£24.58 million09/09/2025GBX 9.45GBX 10.40+10.05%GBX 10.40GBX 9.1522,338 shs£24.58 million09/08/2025GBX 9.90GBX 9.45-4.55%GBX 9.90GBX 9212,682 shs£22.34 million09/05/2025GBX 9.52GBX 9.90+3.99%GBX 9.90GBX 9.0541,881 shs£23.40 million09/04/2025GBX 10.13GBX 9.52-6.02%GBX 10.10GBX 9.5211,510 shs£22.50 million09/03/2025GBX 10.15GBX 10.13-0.20%GBX 10.13GBX 9.50129,870 shs£23.94 million09/02/2025GBX 10.50GBX 10.15-3.33%GBX 10.99GBX 9.52180,745 shs£23.99 million09/01/2025GBX 10.02GBX 10.50+4.79%GBX 10.99GBX 10196,587 shs£24.82 million Get the Latest News and Ratings for SYM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Symphony Environmental Technologies and its competitors with MarketBeat's FREE daily newsletter. 08/29/2025GBX 10.58GBX 10.02-5.25%GBX 10.50GBX 10.0220,656 shs£22.56 million08/28/2025GBX 10.64GBX 10.58-0.61%GBX 10.64GBX 10.0230,223 shs£23.80 million08/27/2025GBX 10.80GBX 10.64-1.48%GBX 10.67GBX 10.02129,883 shs£23.95 million08/26/2025GBX 10.70GBX 10.80+0.94%GBX 10.99GBX 10518,097 shs£24.31 million08/25/2025GBX 10.70GBX 10.70GBX 11GBX 10.6871,617 shs£24.08 million08/22/2025GBX 10.68GBX 10.70+0.18%GBX 11GBX 10.6871,617 shs£24.08 million08/21/2025GBX 10.65GBX 10.68+0.28%GBX 10.68GBX 10.6524,468 shs£24.04 million08/20/2025GBX 11.20GBX 10.65-4.91%GBX 11.20GBX 10.55231,848 shs£23.97 million08/19/2025GBX 11.40GBX 11.20-1.75%GBX 11.20GBX 10.50789,321 shs£25.21 million08/18/2025GBX 11GBX 11.40+3.64%GBX 11.75GBX 10.50667,695 shs£25.66 million08/15/2025GBX 11.98GBX 11-8.14%GBX 11.98GBX 11122,878 shs£24.76 million08/14/2025GBX 11.98GBX 11.98GBX 11.98GBX 11.05409,150 shs£26.96 million Related Companies Carr's Group Stock Price Chart DCI Advisors Stock Price Chart Transense Technologies Stock Price Chart Rolls-Royce Holdings plc Stock Price Chart Kainos Group Stock Price Chart Schroder Oriental Income Stock Price Chart Northern Venture Trust Stock Price Chart Robinson Stock Price Chart Coral Products Stock Price Chart Macfarlane Group Stock Price Chart Receive SYM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Symphony Environmental Technologies and its competitors with MarketBeat's FREE daily newsletter. 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