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	param	t-stat
$ω$	0.1009	15.29
$α$	0.0354	15.81
$β$	0.9274	409.62
$γ$	0.0490	7.45

V-Lab

Vale SA GJR-GARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:41.80% (-1.26%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Vale SA Analyses