Put-Call Ratio (Volume) (20-Day)

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

Coherus Oncology, Inc. (CHRS) had 20-Day Put-Call Ratio (Volume) of 16.6667 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8593
Historical Volatility (Parkinson)	0.8856
Implied Volatility (Calls)	1.3597
Implied Volatility (Puts)	0.8222
Implied Volatility (Mean)	1.0910
Put-Call Implied Volatility Ratio	0.6046
Implied Volatility Skew	0.2718
Option Statistics
Put-Call Ratio (Volume)	16.6667
Put-Call Ratio (Open Interest)	0.0009