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	param	t-stat
$ω$	1.1652	7.81
$α$	0.1229	8.21
$β$	0.8038	36.51
$γ_{1}$	0.3001	5.58
$γ_{2}$	-0.5116	-5.89
$γ_{3}$	0.2734	4.07
$γ_{4}$	0.0011	0.02
$γ_{5}$	-0.1751	-2.49
$γ_{6}$	0.2593	2.75
$γ_{7}$	-0.3285	-2.43
$γ_{8}$	0.3353	2.29
$γ_{9}$	-0.2711	-2.43
$γ_{10}$	0.3642	3.49

V-Lab

Sinopec Oilfield Service Corp Spline-GARCH Volatility Analysis

Volatility Prediction for Monday, February 9th, 2026:79.60% (-3.57%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Sinopec Oilfield Service Corp Analyses