American Superconductor - 34 Year Stock Price History | AMSC

The latest closing stock price for American Superconductor as of May 02, 2025 is 21.10.

  • An investor who bought $1,000 worth of American Superconductor stock at the IPO in 1991 would have $-817 today, roughly -1 times their original investment - a -5.01% compound annual growth rate over 33 years.
  • The all-time high American Superconductor stock closing price was 692.50 on February 28, 2000.
  • The American Superconductor 52-week high stock price is 38.02, which is 80.2% above the current share price.
  • The American Superconductor 52-week low stock price is 13.07, which is 38.1% below the current share price.
  • The average American Superconductor stock price for the last 52 weeks is 23.66.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

American Superconductor - 34 Year Stock Price History | AMSC

  • An investor who bought $1,000 worth of American Superconductor stock at the IPO in 1991 would have $-817 today, roughly -1 times their original investment - a -5.01% compound annual growth rate over 33 years.
  • The all-time high American Superconductor stock closing price was 692.50 on February 28, 2000.
  • The American Superconductor 52-week high stock price is 38.02, which is 80.2% above the current share price.
  • The American Superconductor 52-week low stock price is 13.07, which is 38.1% below the current share price.
  • The average American Superconductor stock price for the last 52 weeks is 23.66.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.