Put-Call Ratio (Volume) (60-Day)

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

Proto Labs, Inc. (PRLB) 60-Day Put-Call Ratio (Volume) data is not available for 2026-05-21.

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Figures for 2026-05-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3371
Historical Volatility (Parkinson)	0.4015
Implied Volatility (Calls)	0.3808
Implied Volatility (Puts)	0.3975
Implied Volatility (Mean)	0.3891
Put-Call Implied Volatility Ratio	1.0438
Implied Volatility Skew	0.0139
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1920