Put-Call Ratio (Open Interest) (90-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.

Quadratic Interest Rate Volatility and Inflation Hedge ETF (IVOL) had 90-Day Put-Call Ratio (Open Interest) of 0.3975 for 2026-01-16.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.0515
Historical Volatility (Parkinson)	0.0455
Implied Volatility (Calls)	--
Implied Volatility (Puts)	0.2572
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	0.0779
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.3975