Put-Call Ratio (Volume) (120-Day)

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

Pacific Biosciences of California, Inc. (PACB) had 120-Day Put-Call Ratio (Volume) of 1.1340 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0219
Historical Volatility (Parkinson)	0.9185
Implied Volatility (Calls)	0.9692
Implied Volatility (Puts)	1.0989
Implied Volatility (Mean)	1.0341
Put-Call Implied Volatility Ratio	1.1338
Implied Volatility Skew	0.0720
Option Statistics
Put-Call Ratio (Volume)	1.1340
Put-Call Ratio (Open Interest)	0.0762