Put-Call Ratio (Volume) (30-Day)

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

Sionna Therapeutics, Inc. (SION) 30-Day Put-Call Ratio (Volume) data is not available for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7326
Historical Volatility (Parkinson)	0.7269
Implied Volatility (Calls)	1.1219
Implied Volatility (Puts)	0.9839
Implied Volatility (Mean)	1.0529
Put-Call Implied Volatility Ratio	0.8770
Implied Volatility Skew	-0.0397
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.6405