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	param	t-stat
$ω$	0.0213	21.99
$α$	0.1501	36.13
$β$	0.9831	1,099.70
$γ$	-0.0093	-2.65

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Graham Holdings Co EGARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:29.14% (-0.27%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Graham Holdings Co Analyses