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	param	t-stat
$ω$	1.0000	2.79
$α$	0.0987	11.79
$β$	0.8663	54.99
$γ$	-0.1018	-2.25
$δ$	1.7006	10.61

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Sunlands Technology Group APARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:60.55% (-0.14%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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