Alto Ingredients - 15 Year Stock Price History | ALTO

Historical daily share price chart and data for Alto Ingredients since 2011 adjusted for splits and dividends. The latest closing stock price for Alto Ingredients as of September 17, 2026 is 4.02.
  • The all-time high Alto Ingredients stock closing price was 24.15 on February 27, 2012.
  • The Alto Ingredients 52-week high stock price is 6.11, which is 52% above the current share price.
  • The Alto Ingredients 52-week low stock price is 0.99, which is 75.4% below the current share price.
  • The average Alto Ingredients stock price for the last 52 weeks is 3.59.
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Alto Ingredients Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2026 4.2952 2.6600 5.9900 2.2800 4.0200 39.58%
2025 1.3797 1.6900 3.0800 0.7800 2.8800 84.62%
2024 1.7227 2.6800 2.7400 1.2100 1.5600 -41.35%
2023 2.9280 2.9100 4.9200 1.2200 2.6600 -7.64%
2022 4.6389 5.1800 7.1800 2.6800 2.8800 -40.12%
2021 5.6690 5.7000 8.0400 4.4600 4.8100 -11.42%
2020 2.8876 0.8100 10.8300 0.2300 5.4300 735.38%
2019 0.8475 1.0900 1.4900 0.4600 0.6500 -24.42%
2018 2.7595 4.6000 4.7000 0.8100 0.8600 -81.10%
2017 6.0678 9.8500 9.8500 4.1500 4.5500 -52.11%
2016 5.8547 4.8500 10.2500 2.8000 9.5000 98.74%
2015 8.4796 10.9400 13.4000 3.8300 4.7800 -53.73%
2014 13.7822 5.2300 23.5200 5.0800 10.3300 102.95%
2013 4.3116 5.1000 6.3000 2.4300 5.0900 6.04%
2012 9.7818 16.6500 24.1500 4.3500 4.8000 -69.81%
Sector Industry Market Cap Revenue
Consumer Discretionary Consumer Products - Misc. Discretionary $0.312B $0.918B
Alto Ingredients Inc. is a producer of specialty alcohols and essential ingredients. The company is focused on products which includes Health, Home & Beauty; Food & Beverage; Essential Ingredients and Renewable Fuels. Alto Ingredients Inc., formerly known as Pacific Ethanol Inc., is based in SACRAMENTO, Calif.
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