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Egyptian EGX 30 Price Return Index GJR-GARCH Volatility Analysis

Volatility prediction for Sunday, September 6th, 2026

1 Day

15.83%

increased by 0.50%

1 Week

16.75%

increased by 1.42%

1 Month

19.40%

increased by 4.07%

Analysis last updated: Friday, September 4, 2026 at 11:27 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Egyptian EGX 30 Price Return Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1998 to Sep 3, 2026

Model Insight

Volatility shocks decay with a half-life of 20 trading days, meaning a shock loses half its impact after approximately 20 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 20-day half-life
ParamValuet-stat
ωconst0.0963
3.20***
αARCH0.0975
2.87***
βGARCH0.8468
32.30***
γleverage0.0418
0.90

0.965

Persistence

20d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0963
3.20***
α

ARCH

Response to squared shocks

0.0975
2.87***
β

GARCH

Volatility persistence

0.8468
32.30***
γ

leverage

Additional response to negative shocks

0.0418
0.90

Persistence:

0.965

Half-life:

20 days