Put-Call Ratio (Volume) (150-Day)

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

Zscaler, Inc. (ZS) had 150-Day Put-Call Ratio (Volume) of 1.3181 for 2026-07-28.

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Figures for 2026-07-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8382
Historical Volatility (Parkinson)	0.5231
Implied Volatility (Calls)	0.6941
Implied Volatility (Puts)	0.6895
Implied Volatility (Mean)	0.6918
Put-Call Implied Volatility Ratio	0.9934
Implied Volatility Skew	0.0047
Option Statistics
Put-Call Ratio (Volume)	1.3181
Put-Call Ratio (Open Interest)	1.0009