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.

ProShares Ultra Nasdaq Biotechnology (BIB) had 30-Day Put-Call Ratio (Open Interest) of 1.6071 for 2025-08-28.

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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3361
Historical Volatility (Parkinson)	0.2199
Implied Volatility (Calls)	0.4229
Implied Volatility (Puts)	0.4140
Implied Volatility (Mean)	0.4185
Put-Call Implied Volatility Ratio	0.9791
Implied Volatility Skew	0.0479
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	1.6071