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	param	t-stat
$ω$	1.0112	6.39
$α$	0.0978	2.70
$β$	0.8070	9.01
$γ_{1}$	0.0963	1.88
$γ_{2}$	-0.2268	-2.34

V-Lab

Sunlands Technology Group Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:53.60% (+0.24%)

Date Range:

Parameter Estimates

News Impact Curve

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Other Sunlands Technology Group Analyses