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V-Lab

Woolworths Holdings Ltd/South Africa MF2-GARCH Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

26.10%

decreased by 0.50%

1 Week

26.51%

decreased by 0.09%

1 Month

27.20%

increased by 0.60%

Analysis last updated: Tuesday, August 25, 2026 at 08:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Woolworths Holdings Ltd/South Africa MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 3, 1997 to Aug 21, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 50% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0715
18.05***
β

GARCH

Volatility persistence

0.7571
60.87***
γ

leverage

Additional response to negative shocks

0.0358
7.46***
λ₁

tau intercept

Baseline long-term coefficient

0.0156
2.52**
λ₂

forecast adj.

Forecast performance sensitivity

0.0102
3.86***
λ₃

tau persistence

Long-term factor persistence

0.9855
252.75***

Persistence:

0.847

Half-life:

4 days