Put-Call Ratio (Volume) (20-Day)

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

iShares Top 20 U.S. Stocks ETF (TOPT) had 20-Day Put-Call Ratio (Volume) of 1.0000 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1166
Historical Volatility (Parkinson)	0.1039
Implied Volatility (Calls)	0.1913
Implied Volatility (Puts)	0.1777
Implied Volatility (Mean)	0.1845
Put-Call Implied Volatility Ratio	0.9286
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	1.0000
Put-Call Ratio (Open Interest)	0.5462