Put-Call Ratio (Volume) (90-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 90-Day Put-Call Ratio (Volume) of 5.4112 for 2026-03-05.

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Figures for 2026-03-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5185
Historical Volatility (Parkinson)	0.4840
Implied Volatility (Calls)	0.6503
Implied Volatility (Puts)	0.6369
Implied Volatility (Mean)	0.6436
Put-Call Implied Volatility Ratio	0.9793
Implied Volatility Skew	0.0371
Option Statistics
Put-Call Ratio (Volume)	5.4112
Put-Call Ratio (Open Interest)	0.3942