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.

State Street SPDR S&P 500 ETF Trust (SPY) had 30-Day Put-Call Ratio (Volume) of 1.3444 for 2026-09-11.

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Figures for 2026-09-11

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0894
Historical Volatility (Parkinson)	0.0552
Implied Volatility (Calls)	0.1268
Implied Volatility (Puts)	0.1270
Implied Volatility (Mean)	0.1269
Put-Call Implied Volatility Ratio	1.0018
Implied Volatility Skew	0.0561
Option Statistics
Put-Call Ratio (Volume)	1.3444
Put-Call Ratio (Open Interest)	1.8292