Stem (STEM) Stock Chart & Stock Price History $19.90 -0.18 (-0.91%) Closing price 03:59 PM EasternExtended Trading$19.89 -0.01 (-0.07%) As of 05:36 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Stem Stock Price Performance The Stem (STEM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 188.54%, with a year-to-date return of 64.99%. In the past month, the stock has increased 18.69%, reflecting recent market activity. As of the latest close, Stem traded at $20.23 with a market cap of $169.72 million and volume of 861,939 shares. 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Read our full terms of service and privacy policy. 5 Day Performance+15.62%1 Month Performance+18.69%3 Month Performance+170.35%Year-To-Date Performance+64.99%1 Year Performance+188.54% STEM Stock Chart for Tuesday, September, 23, 2025 STEM Chart by TradingView Stem 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 Capitalization09/22/2025$18.02$20.23+12.29%$21.13$18.45861,939 shs$169.72 million09/19/2025$17.21$18.02+4.71%$18.38$16.89302,291 shs$151.15 million09/18/2025$17.65$17.21-2.49%$18.11$16.92286,743 shs$144.39 million09/17/2025$16.65$17.65+6.01%$18.48$16.57525,271 shs$148.08 million09/16/2025$15.25$16.65+9.15%$16.67$15.07343,447 shs$139.66 million09/15/2025$14.84$15.25+2.80%$15.35$14.60186,261 shs$127.98 million09/12/2025$14.60$14.84+1.66%$14.85$14.13110,767 shs$124.05 million09/11/2025$13.17$14.60+10.83%$14.88$13.18224,260 shs$122.02 million09/10/2025$13.81$13.17-4.63%$14.29$13.14169,073 shs$110.09 million09/09/2025$13.47$13.81+2.52%$14.00$13.15194,979 shs$115.45 million Get the Latest News and Ratings for STEM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Stem and its competitors with MarketBeat's FREE daily newsletter. 09/08/2025$14.02$13.47-3.92%$13.95$13.39109,903 shs$112.61 million09/05/2025$14.25$14.02-1.58%$14.30$13.5082,477 shs$117.21 million09/04/2025$14.46$14.25-1.46%$14.64$13.47106,454 shs$119.07 million09/03/2025$14.83$14.46-2.52%$14.91$14.17181,225 shs$120.85 million09/02/2025$15.16$14.83-2.14%$15.00$14.31180,043 shs$123.98 million09/01/2025$15.16$15.16$16.03$14.60166,898 shs$126.68 million08/29/2025$15.78$15.16-3.98%$16.03$14.60166,898 shs$126.68 million08/28/2025$16.25$15.78-2.84%$16.85$15.70117,789 shs$131.95 million08/27/2025$16.72$16.25-2.84%$17.00$16.1780,043 shs$135.81 million08/26/2025$16.48$16.72+1.44%$17.09$15.88166,960 shs$139.76 million08/25/2025$16.77$16.48-1.68%$17.21$16.17159,333 shs$137.80 million08/22/2025$15.31$16.77+9.50%$16.89$14.56345,725 shs$140.16 million Related Companies SES AI Stock Price Chart NET Power Stock Price Chart Byrna Technologies Stock Price Chart Energy Vault Stock Price Chart GrafTech International Stock Price Chart FREYR Battery Stock Price Chart Rice Acquisition Corp. II Stock Price Chart Electrovaya Stock Price Chart NOVONIX Stock Price Chart NeoVolta Stock Price Chart Receive STEM Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Stem and its competitors with MarketBeat's FREE daily newsletter. This page (NYSE:STEM) was last updated on 9/23/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. 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