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 0.1406 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6348
Historical Volatility (Parkinson)	0.6316
Implied Volatility (Calls)	2.1387
Implied Volatility (Puts)	1.5014
Implied Volatility (Mean)	1.8201
Put-Call Implied Volatility Ratio	0.7020
Implied Volatility Skew	0.0555
Option Statistics
Put-Call Ratio (Volume)	0.1406
Put-Call Ratio (Open Interest)	0.1381