Put-Call Ratio (Volume) (60-Day)

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

GRAIL, Inc. (GRAL) had 60-Day Put-Call Ratio (Volume) of 0.0031 for 2026-10-20.

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Figures for 2026-10-20

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0497
Historical Volatility (Parkinson)	0.8126
Implied Volatility (Calls)	0.8476
Implied Volatility (Puts)	0.8260
Implied Volatility (Mean)	0.8368
Put-Call Implied Volatility Ratio	0.9746
Implied Volatility Skew	-0.0078
Option Statistics
Put-Call Ratio (Volume)	0.0031
Put-Call Ratio (Open Interest)	0.3609