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 3.7957 for 2025-09-17.

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Figures for 2025-09-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2372
Historical Volatility (Parkinson)	0.1793
Implied Volatility (Calls)	0.1653
Implied Volatility (Puts)	0.1513
Implied Volatility (Mean)	0.1583
Put-Call Implied Volatility Ratio	0.9154
Implied Volatility Skew	0.0770
Option Statistics
Put-Call Ratio (Volume)	3.7957
Put-Call Ratio (Open Interest)	1.6540