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 0.0595 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3821
Historical Volatility (Parkinson)	0.5426
Implied Volatility (Calls)	1.9769
Implied Volatility (Puts)	2.0709
Implied Volatility (Mean)	2.0239
Put-Call Implied Volatility Ratio	1.0476
Implied Volatility Skew	-0.3305
Option Statistics
Put-Call Ratio (Volume)	0.0595
Put-Call Ratio (Open Interest)	0.8019