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{name} Model Equation

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Parameter	Value	t-statistic
ω const Unconditional variance weight	0.0265	23.95***
α ARCH Response to squared shocks	0.0205	11.07***
β GARCH Volatility persistence	0.8911	480.89***
γ leverage Additional response to negative shocks	0.1383	27.81***

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S&P MidCap 400 Index GJR-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

Parameter Estimates

Other S&P MidCap 400 Index Analyses