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.

Zymeworks Inc. (ZYME) had 20-Day Put-Call Ratio (Volume) of 11.0000 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5079
Historical Volatility (Parkinson)	0.5332
Implied Volatility (Calls)	0.8466
Implied Volatility (Puts)	0.5208
Implied Volatility (Mean)	0.6837
Put-Call Implied Volatility Ratio	0.6152
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	11.0000
Put-Call Ratio (Open Interest)	0.1449