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.

State Street SPDR Dow Jones Industrial Average ETF Trust (DIA) had 20-Day Put-Call Ratio (Volume) of 3.5859 for 2026-05-11.

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Figures for 2026-05-11

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1185
Historical Volatility (Parkinson)	0.0878
Implied Volatility (Calls)	0.1512
Implied Volatility (Puts)	0.1473
Implied Volatility (Mean)	0.1492
Put-Call Implied Volatility Ratio	0.9744
Implied Volatility Skew	0.0435
Option Statistics
Put-Call Ratio (Volume)	3.5859
Put-Call Ratio (Open Interest)	1.2854