Put-Call Ratio (Open Interest) (90-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Innospec Inc. (IOSP) had 90-Day Put-Call Ratio (Open Interest) of 0.3208 for 2026-09-04.

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Figures for 2026-09-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2111
Historical Volatility (Parkinson)	0.2317
Implied Volatility (Calls)	0.2406
Implied Volatility (Puts)	0.2394
Implied Volatility (Mean)	0.2400
Put-Call Implied Volatility Ratio	0.9953
Implied Volatility Skew	0.0563
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.3208