Put-Call Ratio (Open Interest) (150-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 150-Day Put-Call Ratio (Open Interest) of 0.1245 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3570
Historical Volatility (Parkinson)	0.3404
Implied Volatility (Calls)	0.4640
Implied Volatility (Puts)	0.4371
Implied Volatility (Mean)	0.4505
Put-Call Implied Volatility Ratio	0.9421
Implied Volatility Skew	0.0264
Option Statistics
Put-Call Ratio (Volume)	0.1742
Put-Call Ratio (Open Interest)	0.1245