Put-Call Ratio (Open Interest) (20-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 20-Day Put-Call Ratio (Open Interest) of 0.4378 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6487
Historical Volatility (Parkinson)	0.4830
Implied Volatility (Calls)	0.9130
Implied Volatility (Puts)	0.9786
Implied Volatility (Mean)	0.9458
Put-Call Implied Volatility Ratio	1.0718
Implied Volatility Skew	-0.0564
Option Statistics
Put-Call Ratio (Volume)	0.0568
Put-Call Ratio (Open Interest)	0.4378