Put-Call Ratio (Volume) (120-Day)

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

Aspen Aerogels, Inc. (ASPN) 120-Day Put-Call Ratio (Volume) data is not available for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8338
Historical Volatility (Parkinson)	0.6334
Implied Volatility (Calls)	1.0315
Implied Volatility (Puts)	0.8412
Implied Volatility (Mean)	0.9364
Put-Call Implied Volatility Ratio	0.8155
Implied Volatility Skew	0.4359
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	4.0654