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	param	t-stat
$ω$	1.7792	9.56
$α$	0.0735	7.73
$β$	0.8860	62.80
$γ_{1}$	0.0072	4.14
$γ_{2}$	-0.0075	-3.46

V-Lab

Telefonica Brasil SA Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Wednesday, February 11th, 2026:31.91% (-0.32%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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