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.

MapLight Therapeutics, Inc. (MPLT) had 20-Day Put-Call Ratio (Volume) of 10.0000 for 2026-10-05.

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Figures for 2026-10-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4012
Historical Volatility (Parkinson)	0.5715
Implied Volatility (Calls)	1.3833
Implied Volatility (Puts)	0.7731
Implied Volatility (Mean)	1.0782
Put-Call Implied Volatility Ratio	0.5589
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	10.0000
Put-Call Ratio (Open Interest)	0.3277