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	param	t-stat
$ω$	0.7992	6.85
$α$	0.0661	5.03
$β$	0.8667	33.42
$γ_{1}$	0.0714	1.54
$γ_{2}$	-0.1156	-1.72
$γ_{3}$	0.0213	0.52
$γ_{4}$	0.0598	1.44
$γ_{5}$	-0.0866	-1.82
$γ_{6}$	0.1332	2.48
$γ_{7}$	-0.1460	-2.17
$γ_{8}$	0.0824	1.26
$γ_{9}$	-0.0238	-0.59

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AstraZeneca PLC Zero Slope Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 23rd, 2026:26.32% (-0.99%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

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