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	param	t-stat
$ω$	0.8429	8.56
$α$	0.0609	6.70
$β$	0.9252	93.85
$γ_{1}$	-0.0021	-1.67

V-Lab

Vale SA Spline-GARCH Volatility Analysis

Volatility Prediction for Tuesday, February 17th, 2026:42.33% (-0.40%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vale SA Analyses