Put-Call Ratio (Open Interest) (180-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.

iShares Russell 1000 ETF (IWB) had 180-Day Put-Call Ratio (Open Interest) of 1.4683 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1089
Historical Volatility (Parkinson)	0.0937
Implied Volatility (Calls)	0.1684
Implied Volatility (Puts)	0.1627
Implied Volatility (Mean)	0.1655
Put-Call Implied Volatility Ratio	0.9662
Implied Volatility Skew	0.0762
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.4683