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	param	t-stat
$ω$	0.5706	4.87
$α$	0.1641	8.05
$β$	0.7821	34.17
$γ_{1}$	-0.0153	-3.65
$γ_{2}$	0.0143	2.48
$γ_{3}$	0.0059	1.35

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Sumitomo Mitsui Trust Group Inc Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 13th, 2026:32.10% (-0.56%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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