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.

NL Industries, Inc. (NL) 30-Day Put-Call Ratio (Volume) data is not available for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5003
Historical Volatility (Parkinson)	0.5870
Implied Volatility (Calls)	0.6274
Implied Volatility (Puts)	0.7227
Implied Volatility (Mean)	0.6750
Put-Call Implied Volatility Ratio	1.1520
Implied Volatility Skew	0.2894
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.8393