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	param	t-stat
$ω$	0.8113	10.39
$α$	0.0586	8.49
$β$	0.9275	117.28
$γ_{1}$	-0.0003	-2.17

V-Lab

Rio Tinto Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:32.37% (-0.05%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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