Put-Call Ratio (Volume) (150-Day)

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

Aspen Aerogels, Inc. (ASPN) 150-Day Put-Call Ratio (Volume) data is not available for 2026-10-05.

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Figures for 2026-10-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8241
Historical Volatility (Parkinson)	0.6679
Implied Volatility (Calls)	0.8408
Implied Volatility (Puts)	0.8185
Implied Volatility (Mean)	0.8296
Put-Call Implied Volatility Ratio	0.9735
Implied Volatility Skew	-0.0050
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	8.3571