Put-Call Ratio (Open Interest) (180-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 180-Day Put-Call Ratio (Open Interest) of 0.0886 for 2026-01-16.

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Volatility Metrics
Historical Volatility (Close-to-Close)	0.0635
Historical Volatility (Parkinson)	0.0517
Implied Volatility (Calls)	0.1713
Implied Volatility (Puts)	0.1951
Implied Volatility (Mean)	0.1832
Put-Call Implied Volatility Ratio	1.1393
Implied Volatility Skew	0.0231
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0886