Put-Call Ratio (Volume) (120-Day)

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

State Street SPDR S&P 500 ETF Trust (SPY) had 120-Day Put-Call Ratio (Volume) of 0.6797 for 2026-09-17.

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Figures for 2026-09-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1279
Historical Volatility (Parkinson)	0.0972
Implied Volatility (Calls)	0.1523
Implied Volatility (Puts)	0.1471
Implied Volatility (Mean)	0.1497
Put-Call Implied Volatility Ratio	0.9661
Implied Volatility Skew	0.0661
Option Statistics
Put-Call Ratio (Volume)	0.6797
Put-Call Ratio (Open Interest)	1.6604