Put-Call Ratio (Volume) (20-Day)

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

REGENXBIO Inc. (RGNX) had 20-Day Put-Call Ratio (Volume) of 39.9500 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	1.4396
Historical Volatility (Parkinson)	0.6753
Implied Volatility (Calls)	0.8909
Implied Volatility (Puts)	0.8641
Implied Volatility (Mean)	0.8775
Put-Call Implied Volatility Ratio	0.9699
Implied Volatility Skew	-0.0035
Option Statistics
Put-Call Ratio (Volume)	39.9500
Put-Call Ratio (Open Interest)	1.5107