Put-Call Ratio (Volume) (30-Day)

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

Onto Innovation Inc. (ONTO) had 30-Day Put-Call Ratio (Volume) of 0.7692 for 2026-07-17.

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Figures for 2026-07-17

Volatility Metrics
Historical Volatility (Close-to-Close)	1.0659
Historical Volatility (Parkinson)	0.7541
Implied Volatility (Calls)	1.0866
Implied Volatility (Puts)	1.1144
Implied Volatility (Mean)	1.1005
Put-Call Implied Volatility Ratio	1.0256
Implied Volatility Skew	0.0480
Option Statistics
Put-Call Ratio (Volume)	0.7692
Put-Call Ratio (Open Interest)	0.4576