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	param	t-stat
$ω$	0.8657	5.53
$α$	0.1001	2.01
$β$	0.8311	11.87
$γ_{1}$	-0.0597	-0.76

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Proshares S&P 500 HI Inc ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Wednesday, February 18th, 2026:13.27% (-0.50%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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