Put-Call Ratio (Volume) (180-Day)

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

Lyell Immunopharma, Inc. (LYEL) had 180-Day Put-Call Ratio (Volume) of 0.0000 for 2026-03-09.

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Figures for 2026-03-09

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8493
Historical Volatility (Parkinson)	0.9008
Implied Volatility (Calls)	0.9135
Implied Volatility (Puts)	0.9091
Implied Volatility (Mean)	0.9113
Put-Call Implied Volatility Ratio	0.9952
Implied Volatility Skew	0.0436
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.8193