Alto Ingredients (ALTO) Stock Chart & Stock Price History $1.10 -0.02 (-1.79%) Closing price 04:00 PM EasternExtended Trading$1.08 -0.02 (-1.82%) As of 06:47 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 Alto Ingredients Stock Price Performance The Alto Ingredients (ALTO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 33.73%, with a year-to-date return of -29.49%. In the past month, the stock has decreased 6.78%, reflecting recent market activity. As of the latest close, Alto Ingredients traded at $1.12 with a market cap of $86.69 million and volume of 144,045 shares. 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Read our full terms of service and privacy policy. 5 Day Performance-2.65%1 Month Performance-6.78%3 Month Performance-11.29%Year-To-Date Performance-29.49%1 Year Performance-33.73% ALTO Stock Chart for Monday, October, 13, 2025 ALTO Chart by TradingView Alto Ingredients 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 Capitalization10/13/2025$1.12$1.10-1.79%$1.14$1.07288,590 shs$85.14 million10/10/2025$1.12$1.12$1.15$1.11144,045 shs$86.69 million10/09/2025$1.13$1.12-0.88%$1.17$1.10182,874 shs$86.69 million10/08/2025$1.11$1.13+1.80%$1.15$1.10122,368 shs$87.46 million10/07/2025$1.14$1.11-2.63%$1.15$1.06262,864 shs$85.91 million10/06/2025$1.11$1.14+2.70%$1.15$1.10345,347 shs$88.24 million10/03/2025$1.10$1.11+0.91%$1.15$1.08240,939 shs$85.91 million10/02/2025$1.03$1.10+6.80%$1.10$1.04190,374 shs$85.14 million10/01/2025$1.08$1.03-4.63%$1.08$1.02260,637 shs$79.72 million09/30/2025$1.09$1.08-0.92%$1.12$1.04223,919 shs$83.59 million Get the Latest News and Ratings for ALTO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alto Ingredients and its competitors with MarketBeat's FREE daily newsletter. 09/29/2025$1.09$1.09$1.10$1.07374,507 shs$84.37 million09/26/2025$1.07$1.09+1.87%$1.09$1.06130,053 shs$84.37 million09/25/2025$1.09$1.07-1.83%$1.10$1.02245,530 shs$82.82 million09/24/2025$1.10$1.09-0.91%$1.12$1.06293,552 shs$84.37 million09/23/2025$1.05$1.10+4.76%$1.12$1.05384,083 shs$85.14 million09/22/2025$0.92$1.05+14.48%$1.13$1.031.61 million shs$81.27 million09/19/2025$1.29$0.92-28.62%$1.30$0.922.26 million shs$70.99 million09/18/2025$1.17$1.29+9.83%$1.31$1.19617,081 shs$99.46 million09/17/2025$1.18$1.17-0.85%$1.22$1.16237,379 shs$90.56 million09/16/2025$1.18$1.18$1.23$1.16113,147 shs$91.33 million09/15/2025$1.18$1.18$1.23$1.14304,239 shs$91.33 million09/12/2025$1.16$1.18+1.72%$1.19$1.14120,017 shs$91.33 million Related Companies ARQ Stock Chart Aemetis Stock Chart Verde Clean Fuels Stock Chart Flexible Solutions International Stock Chart Trinseo Stock Chart Zentek Stock Chart Origin Materials Stock Chart Cibus Stock Chart Loop Industries Stock Chart LanzaTech Global Stock Chart Receive ALTO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alto Ingredients and its competitors with MarketBeat's FREE daily newsletter. 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