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.

Proto Labs, Inc. (PRLB) had 30-Day Put-Call Ratio (Volume) of 0.0000 for 2026-04-17.

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Figures for 2026-04-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3761
Historical Volatility (Parkinson)	0.3385
Implied Volatility (Calls)	0.5430
Implied Volatility (Puts)	0.5780
Implied Volatility (Mean)	0.5605
Put-Call Implied Volatility Ratio	1.0644
Implied Volatility Skew	0.0279
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0556