Put-Call Ratio (Volume) (30-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Keros Therapeutics, Inc. (KROS) had 30-Day Put-Call Ratio (Volume) of 0.0000 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5691
Historical Volatility (Parkinson)	0.4786
Implied Volatility (Calls)	1.3305
Implied Volatility (Puts)	1.2437
Implied Volatility (Mean)	1.2871
Put-Call Implied Volatility Ratio	0.9348
Implied Volatility Skew	-0.3873
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	2.6319