SUMCO (SUOPY) Stock Chart & Stock Price History $16.71 +0.12 (+0.71%) As of 08/8/2025 10:21 AM Eastern Add Compare Share Share Chart Stock AnalysisChartEarningsHeadlinesSEC FilingsShort InterestBuy This Stock SUMCO Stock Price Performance The SUMCO (SUOPY) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 21.67%, with a year-to-date return of 12.55%. In the past month, the stock has increased 4.03%, reflecting recent market activity. As of the latest close, SUMCO traded at $16.71 with a market cap of $2.93 billion and volume of 1,223 shares. Five years ago, the stock traded at $28.10, representing a 40.54% decrease over that period. At the time, it had a market cap of $4.65 billion and a volume of 523 shares. Receive SUOPY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for SUMCO and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+5.26%1 Month Performance+4.03%3 Month Performance+22.85%Year-To-Date Performance+12.55%1 Year Performance-21.67%5 Year Performance-40.54% SUOPY Stock Chart for Saturday, August, 9, 2025 SUOPY Chart by TradingView SUMCO 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 Capitalization08/08/2025$16.26$16.71+2.75%$16.89$16.711,223 shs$2.93 billion08/07/2025$16.22$16.26+0.25%$16.59$16.261,110 shs$2.85 billion08/06/2025$16.22$16.22$16.22$16.22170 shs$2.84 billion08/05/2025$15.87$16.22+2.18%$16.22$16.22170 shs$2.84 billion08/04/2025$15.34$15.87+3.48%$15.87$15.87216 shs$2.78 billion08/01/2025$15.68$15.34-2.17%$15.50$15.34604 shs$2.69 billion07/31/2025$15.90$15.68-1.35%$15.68$15.68126 shs$2.75 billion07/30/2025$15.90$15.90$15.90$15.90400 shs$2.78 billion07/29/2025$16.50$15.90-3.67%$15.90$15.90400 shs$2.78 billion07/28/2025$16.56$16.50-0.36%$16.50$16.50452 shs$2.89 billion Get the Latest News and Ratings for SUOPY and Related StocksEnter your email address below to receive the latest news and analysts' ratings for SUMCO and its competitors with MarketBeat's FREE daily newsletter. 07/25/2025$17.97$16.56-7.85%$17.20$16.56650 shs$2.90 billion07/24/2025$17.38$17.97+3.39%$17.97$17.97118 shs$3.15 billion07/23/2025$16.06$17.38+8.22%$17.38$16.73695 shs$3.04 billion07/22/2025$16.06$16.06$16.06$16.0615 shs$2.81 billion07/10/2025$16.06$16.06$16.06$15.741,232 shs$2.81 billion07/09/2025$15.31$16.06+4.90%$16.06$15.741,232 shs$2.81 billion07/08/2025$15.41$15.31-0.65%$15.43$15.313,334 shs$2.68 billion Related Companies THK Stock Chart Amtech Systems Stock Chart NVIDIA Stock Chart Texas Instruments Stock Chart Intel Stock Chart STMicroelectronics Stock Chart AppFolio Stock Chart Entegris Stock Chart Rakuten Stock Chart IonQ Stock Chart Receive SUOPY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for SUMCO and its competitors with MarketBeat's FREE daily newsletter. 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