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	param	t-stat
$ω$	0.0151	17.42
$α$	0.0561	34.56
$β$	0.9395	566.67

V-Lab

Graham Holdings Co GARCH Volatility Analysis

Volatility Prediction for Thursday, February 19th, 2026:28.55% (-0.60%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Graham Holdings Co Analyses