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	param	t-stat
$ω$	0.0193	12.13
$α$	0.0497	28.35
$β$	0.9486	812.83
$γ$	0.2101	15.73
$δ$	1.7764	24.71

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Rio Tinto PLC APARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:29.90% (-0.80%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Rio Tinto PLC Analyses