American Superconductor Corporation (AMSC)

Last Closing Price: 40.73 (2026-04-20)

Put-Call Ratio (Open Interest) (90-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

American Superconductor Corporation (AMSC) had 90-Day Put-Call Ratio (Open Interest) of 0.8268 for 2026-04-20.