Put-Call Ratio (Volume) (180-Day)

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

Aspen Aerogels, Inc. (ASPN) had 180-Day Put-Call Ratio (Volume) of 0.0000 for 2026-03-05.

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Figures for 2026-03-05

Volatility Metrics
Historical Volatility (Close-to-Close)	1.1968
Historical Volatility (Parkinson)	0.7031
Implied Volatility (Calls)	1.5087
Implied Volatility (Puts)	1.3288
Implied Volatility (Mean)	1.4187
Put-Call Implied Volatility Ratio	0.8807
Implied Volatility Skew	0.1329
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	1.5099