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V-Lab
V-Lab

Jason Co Ltd EGARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

20.46%

decreased by 0.28%

1 Week

21.87%

increased by 1.13%

1 Month

27.82%

increased by 7.08%

Analysis last updated: Tuesday, September 8, 2026 at 08:58 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Jason Co Ltd EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 26, 2007 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 26 trading days, meaning a shock loses half its impact after approximately 26 days.

σ

EGARCH Model

Tap to view equation

Shock decay: Shocks decay with a 26-day half-life
ParamValuet-stat
ωconst0.0798
4.07***
αARCH0.2191
7.38***
βGARCH0.9738
131.34***
γleverage0.0691
1.75*

0.974

Persistence

26d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0798
4.07***
α

ARCH

Response to squared shocks

0.2191
7.38***
β

GARCH

Volatility persistence

0.9738
131.34***
γ

leverage

Additional response to negative shocks

0.0691
1.75*

Persistence:

0.974

Half-life:

26 days