Put-Call Ratio (Volume) (90-Day)

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

Core Natural Resources, Inc. (CNR) had 90-Day Put-Call Ratio (Volume) of 2.7225 for 2026-07-21.

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Figures for 2026-07-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3926
Historical Volatility (Parkinson)	0.3730
Implied Volatility (Calls)	0.4935
Implied Volatility (Puts)	0.4458
Implied Volatility (Mean)	0.4696
Put-Call Implied Volatility Ratio	0.9033
Implied Volatility Skew	0.0361
Option Statistics
Put-Call Ratio (Volume)	2.7225
Put-Call Ratio (Open Interest)	0.6750