Put-Call Ratio (Volume) (180-Day)

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

Century Aluminum Company (CENX) had 180-Day Put-Call Ratio (Volume) of 0.4871 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5624
Historical Volatility (Parkinson)	0.5181
Implied Volatility (Calls)	0.6362
Implied Volatility (Puts)	0.6156
Implied Volatility (Mean)	0.6259
Put-Call Implied Volatility Ratio	0.9676
Implied Volatility Skew	0.0062
Option Statistics
Put-Call Ratio (Volume)	0.4871
Put-Call Ratio (Open Interest)	2.8121