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.

Soleno Therapeutics, Inc. (SLNO) had 180-Day Put-Call Ratio (Open Interest) of 0.8401 for 2025-09-11.

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Figures for 2025-09-11

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7155
Historical Volatility (Parkinson)	0.5747
Implied Volatility (Calls)	0.6917
Implied Volatility (Puts)	0.6569
Implied Volatility (Mean)	0.6743
Put-Call Implied Volatility Ratio	0.9498
Implied Volatility Skew	0.0247
Option Statistics
Put-Call Ratio (Volume)	0.0106
Put-Call Ratio (Open Interest)	0.8401