Put-Call Ratio (Volume) (120-Day)

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

Proto Labs, Inc. (PRLB) had 120-Day Put-Call Ratio (Volume) of 0.0000 for 2026-04-06.

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Figures for 2026-04-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5351
Historical Volatility (Parkinson)	0.3699
Implied Volatility (Calls)	0.4970
Implied Volatility (Puts)	0.4863
Implied Volatility (Mean)	0.4916
Put-Call Implied Volatility Ratio	0.9784
Implied Volatility Skew	0.0277
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.2152