Put-Call Ratio (Open Interest) (20-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.

Pegasystems Inc. (PEGA) had 20-Day Put-Call Ratio (Open Interest) of 0.5364 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4207
Historical Volatility (Parkinson)	0.4699
Implied Volatility (Calls)	0.7448
Implied Volatility (Puts)	0.7714
Implied Volatility (Mean)	0.7581
Put-Call Implied Volatility Ratio	1.0358
Implied Volatility Skew	0.0669
Option Statistics
Put-Call Ratio (Volume)	1.4915
Put-Call Ratio (Open Interest)	0.5364