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	param	t-stat
$ω$	2.1416	3.99
$α$	0.1685	10.85
$β$	0.7593	37.20
$γ_{1}$	0.1284	5.60
$γ_{2}$	-0.1872	-5.97
$γ_{3}$	0.1294	6.99
$γ_{4}$	-0.1108	-6.56
$γ_{5}$	0.0140	0.89
$γ_{6}$	0.0510	4.70

V-Lab

Piraeus Bank SA Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Friday, February 20th, 2026:53.70% (+2.91%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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