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.

STAAR Surgical Company (STAA) had 90-Day Put-Call Ratio (Volume) of 0.3231 for 2026-07-16.

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Figures for 2026-07-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4816
Historical Volatility (Parkinson)	0.4467
Implied Volatility (Calls)	0.6241
Implied Volatility (Puts)	0.6621
Implied Volatility (Mean)	0.6431
Put-Call Implied Volatility Ratio	1.0610
Implied Volatility Skew	-0.0072
Option Statistics
Put-Call Ratio (Volume)	0.3231
Put-Call Ratio (Open Interest)	0.3249