Put-Call Ratio (Open Interest) (120-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.

Portillo's Inc. (PTLO) had 120-Day Put-Call Ratio (Open Interest) of 0.3648 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5180
Historical Volatility (Parkinson)	0.4924
Implied Volatility (Calls)	0.6669
Implied Volatility (Puts)	0.5286
Implied Volatility (Mean)	0.5977
Put-Call Implied Volatility Ratio	0.7926
Implied Volatility Skew	0.0187
Option Statistics
Put-Call Ratio (Volume)	0.0645
Put-Call Ratio (Open Interest)	0.3648