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V-Lab

S&P/ASX 200 EGARCH Volatility Analysis

Volatility prediction for Friday, September 25th, 2026

1 Day

12.28%

increased by 0.85%

1 Week

12.38%

increased by 0.95%

1 Month

12.72%

increased by 1.29%

Analysis last updated: Thursday, September 24, 2026 at 07:02 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/ASX 200 EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 29, 1992 to Sep 18, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

EGARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
ωconst-0.0054
-0.95
αARCH0.1407
9.28***
βGARCH0.9736
220.92***
γleverage-0.1017
-7.89***

0.974

Persistence

26d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

-0.0054
-0.95
α

ARCH

Response to squared shocks

0.1407
9.28***
β

GARCH

Volatility persistence

0.9736
220.92***
γ

leverage

Additional response to negative shocks

-0.1017
-7.89***

Persistence:

0.974

Half-life:

26 days