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 Smart Grid Infrastructure ETF (GRID) had 30-Day Put-Call Ratio (Open Interest) of 0.1490 for 2025-05-30.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.1417
Historical Volatility (Parkinson)	0.1038
Implied Volatility (Calls)	0.2123
Implied Volatility (Puts)	0.2111
Implied Volatility (Mean)	0.2117
Put-Call Implied Volatility Ratio	0.9942
Implied Volatility Skew	0.0492
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.1490