Put-Call Ratio (Volume) (90-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Sionna Therapeutics, Inc. (SION) had 90-Day Put-Call Ratio (Volume) of 0.0000 for 2026-07-22.

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Figures for 2026-07-22

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6740
Historical Volatility (Parkinson)	0.7403
Implied Volatility (Calls)	2.3676
Implied Volatility (Puts)	2.3759
Implied Volatility (Mean)	2.3717
Put-Call Implied Volatility Ratio	1.0035
Implied Volatility Skew	-0.0492
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	1.3305