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.

Happen Inc. (HAPN) had 20-Day Put-Call Ratio (Open Interest) of 0.4678 for 2026-08-10.

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Figures for 2026-08-10

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5082
Historical Volatility (Parkinson)	0.4096
Implied Volatility (Calls)	0.5340
Implied Volatility (Puts)	0.5042
Implied Volatility (Mean)	0.5191
Put-Call Implied Volatility Ratio	0.9441
Implied Volatility Skew	0.0283
Option Statistics
Put-Call Ratio (Volume)	0.2493
Put-Call Ratio (Open Interest)	0.4678