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	param	t-stat
$ω$	0.6581	3.02
$α$	0.1485	3.70
$β$	0.6312	7.35
$γ_{1}$	-2.8308	-1.74
$γ_{2}$	4.9185	2.08
$γ_{3}$	-3.9512	-2.36
$γ_{4}$	3.5852	2.41
$γ_{5}$	-2.6896	-2.08
$γ_{6}$	1.0249	0.68
$γ_{7}$	0.5017	0.30
$γ_{8}$	-1.9078	-1.00
$γ_{9}$	2.2045	1.47

V-Lab

Sunlands Technology Group Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:53.58% (+0.59%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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