Put-Call Ratio (Open Interest) (30-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

First Trust NASDAQ Clean Edge Green Energy ETF (QCLN) had 30-Day Put-Call Ratio (Open Interest) of 1.0964 for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3497
Historical Volatility (Parkinson)	0.2063
Implied Volatility (Calls)	0.3495
Implied Volatility (Puts)	0.2996
Implied Volatility (Mean)	0.3245
Put-Call Implied Volatility Ratio	0.8571
Implied Volatility Skew	0.0973
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.0964