Put-Call Ratio (Open Interest) (30-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.

SPDR Dow Jones Industrial Average ETF (DIA) had 30-Day Put-Call Ratio (Open Interest) of 2.3086 for 2025-06-18.

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Figures for 2025-06-18

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1318
Historical Volatility (Parkinson)	0.0922
Implied Volatility (Calls)	0.1551
Implied Volatility (Puts)	0.1540
Implied Volatility (Mean)	0.1546
Put-Call Implied Volatility Ratio	0.9931
Implied Volatility Skew	0.0700
Option Statistics
Put-Call Ratio (Volume)	1.1417
Put-Call Ratio (Open Interest)	2.3086