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 Cybersecurity ETF (CIBR) had 30-Day Put-Call Ratio (Open Interest) of 1.1399 for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1795
Historical Volatility (Parkinson)	0.1535
Implied Volatility (Calls)	0.1980
Implied Volatility (Puts)	0.2123
Implied Volatility (Mean)	0.2051
Put-Call Implied Volatility Ratio	1.0723
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.8405
Put-Call Ratio (Open Interest)	1.1399