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V-Lab

S&P/ASX 200 MEM Volatility Analysis

Volatility prediction for Monday, October 5th, 2026

1 Day

13.40%

decreased by 0.73%

1 Week

13.50%

decreased by 0.63%

1 Month

13.83%

decreased by 0.30%

Analysis last updated: Friday, October 2, 2026 at 07:03 AM UTC

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Date Range:

from

10/02/2024

to

10/02/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/ASX 200 MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 2000 to Oct 2, 2026

Model Insight

Volatility shocks decay with a half-life of 41 trading days, meaning a shock loses half its impact after approximately 41 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 41-day half-life
ParamValuet-stat
ωconst0.0170
2.28**
αARCH0.1797
11.07***
βGARCH0.8036
65.97***

0.983

Persistence

41d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0170
2.28**
α

ARCH

Response to squared shocks

0.1797
11.07***
β

GARCH

Volatility persistence

0.8036
65.97***

Persistence:

0.983

Half-life:

41 days