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.

Qualys, Inc. (QLYS) had 20-Day Put-Call Ratio (Volume) of 1.2353 for 2026-04-17.

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Figures for 2026-04-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7022
Historical Volatility (Parkinson)	0.5643
Implied Volatility (Calls)	0.6114
Implied Volatility (Puts)	0.6188
Implied Volatility (Mean)	0.6151
Put-Call Implied Volatility Ratio	1.0121
Implied Volatility Skew	0.0644
Option Statistics
Put-Call Ratio (Volume)	1.2353
Put-Call Ratio (Open Interest)	1.8783