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 0.1448 for 2026-10-02.

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Figures for 2026-10-02

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3763
Historical Volatility (Parkinson)	0.3456
Implied Volatility (Calls)	0.4543
Implied Volatility (Puts)	0.4723
Implied Volatility (Mean)	0.4633
Put-Call Implied Volatility Ratio	1.0396
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.1448
Put-Call Ratio (Open Interest)	0.2133