CBOE Volatility Index

How illiquidity evolves over time

{name} Model Equation

How returns affect tomorrow's illiquidity

Spline Coefficients

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Parameter	Value	t-statistic
ω const Unconditional variance weight	0.1259	22.01***
α ARCH Response to squared shocks	0.2896	40.01***
β GARCH Volatility persistence	0.9335	305.78***
γ leverage Additional response to negative shocks	-0.0022	-0.37

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