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	param	t-stat
$ω$	0.4057	5.99
$α$	0.1576	7.28
$β$	0.7181	19.88
$γ_{1}$	0.1877	1.60
$γ_{2}$	-0.2077	-1.03
$γ_{3}$	-0.0253	-0.15
$γ_{4}$	0.0412	0.32
$γ_{5}$	0.2274	2.11
$γ_{6}$	-0.4951	-4.62
$γ_{7}$	0.4957	3.88
$γ_{8}$	-0.4984	-3.20
$γ_{9}$	1.4644	7.60

V-Lab

Oi SA Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, November 17th, 2025:1,614.83% (-28.50%)

Date Range:

Parameter Estimates

News Impact Curve

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Other Oi SA Analyses