Put-Call Ratio (Volume) (180-Day)

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

SPDR S&P 500 ETF (SPY) had 180-Day Put-Call Ratio (Volume) of 0.5111 for 2025-10-31.

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Figures for 2025-10-31

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1138
Historical Volatility (Parkinson)	0.0896
Implied Volatility (Calls)	0.1793
Implied Volatility (Puts)	0.1740
Implied Volatility (Mean)	0.1767
Put-Call Implied Volatility Ratio	0.9707
Implied Volatility Skew	0.0754
Option Statistics
Put-Call Ratio (Volume)	0.5111
Put-Call Ratio (Open Interest)	0.8691