Put-Call Ratio (Open Interest) (180-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

ATI Inc. (ATI) had 180-Day Put-Call Ratio (Open Interest) of 0.1198 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4517
Historical Volatility (Parkinson)	0.3522
Implied Volatility (Calls)	0.4532
Implied Volatility (Puts)	0.4552
Implied Volatility (Mean)	0.4542
Put-Call Implied Volatility Ratio	1.0044
Implied Volatility Skew	0.0325
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.1198