Put-Call Ratio (Volume) (30-Day)

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

SPDR Dow Jones Industrial Average ETF (DIA) had 30-Day Put-Call Ratio (Volume) of 1.3769 for 2025-08-01.

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Figures for 2025-08-01

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1053
Historical Volatility (Parkinson)	0.0814
Implied Volatility (Calls)	0.1550
Implied Volatility (Puts)	0.1516
Implied Volatility (Mean)	0.1533
Put-Call Implied Volatility Ratio	0.9781
Implied Volatility Skew	0.0747
Option Statistics
Put-Call Ratio (Volume)	1.3769
Put-Call Ratio (Open Interest)	0.6419