Put-Call Ratio (Volume) (60-Day)

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

iShares S&P 100 ETF (OEF) had 60-Day Put-Call Ratio (Volume) of 1.0000 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1086
Historical Volatility (Parkinson)	0.0839
Implied Volatility (Calls)	0.1853
Implied Volatility (Puts)	0.1707
Implied Volatility (Mean)	0.1780
Put-Call Implied Volatility Ratio	0.9211
Implied Volatility Skew	0.0613
Option Statistics
Put-Call Ratio (Volume)	1.0000
Put-Call Ratio (Open Interest)	0.8779