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	param	t-stat
$ω$	0.0150	17.05
$α$	0.0559	34.47
$β$	0.9397	564.71
$γ$	0.0420	1.03

V-Lab

Graham Holdings Co AGARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:27.20% (-0.65%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Graham Holdings Co Analyses