Skip to main content
V-Lab
V-Lab

Egyptian EGX 30 Price Return Index GJR-GARCH Volatility Analysis

Volatility prediction for Sunday, September 27th, 2026

1 Day

19.23%

decreased by 0.25%

1 Week

19.79%

increased by 0.31%

1 Month

21.48%

increased by 2.00%

Analysis last updated: Friday, September 25, 2026 at 08:55 PM UTC

Press Delete or Backspace to remove this series.
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 24, 2026

Model Insight

Volatility shocks decay with a half-life of 19 trading days, meaning a shock loses half its impact after approximately 19 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 19-day half-life
ParamValuet-stat
ωconst0.0963
3.23***
αARCH0.0973
2.87***
βGARCH0.8470
32.40***
γleverage0.0414
0.90

0.965

Persistence

19d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0963
3.23***
α

ARCH

Response to squared shocks

0.0973
2.87***
β

GARCH

Volatility persistence

0.8470
32.40***
γ

leverage

Additional response to negative shocks

0.0414
0.90

Persistence:

0.965

Half-life:

19 days