Put-Call Implied Volatility Ratio (30-Day)

Put-Call Implied Volatility Ratio: The ratio of implied volatilities of the at-the-money puts to the at-the-money calls.

State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) had 30-Day Put-Call Implied Volatility Ratio of 0.9627 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1866
Historical Volatility (Parkinson)	0.1147
Implied Volatility (Calls)	0.1880
Implied Volatility (Puts)	0.1810
Implied Volatility (Mean)	0.1845
Put-Call Implied Volatility Ratio	0.9627
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.5000