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V-Lab

Dow Jones South Africa Index EGARCH Volatility Analysis

Volatility prediction for Friday, July 31st, 2026

1 Day

15.68%

decreased by 0.04%

1 Week

15.86%

increased by 0.14%

1 Month

16.47%

increased by 0.75%

Analysis last updated: Friday, July 31, 2026 at 08:05 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Dow Jones South Africa Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1992 to Apr 30, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 166% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0108
6.44***
α

ARCH

Response to squared shocks

0.1620
36.56***
β

GARCH

Volatility persistence

0.9727
825.05***
γ

leverage

Additional response to negative shocks

-0.0734
-17.93***

Persistence:

0.973

Half-life:

25 days