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V-Lab

Jakarta Stock Exchange LQ45 Index MF2-GARCH Volatility Analysis

Volatility prediction for Thursday, August 20th, 2026

1 Day

19.89%

decreased by 0.38%

1 Week

21.23%

increased by 0.96%

1 Month

23.81%

increased by 3.54%

Analysis last updated: Wednesday, August 19, 2026 at 10:02 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Jakarta Stock Exchange LQ45 Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 24, 1997 to Aug 14, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 225% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

36
α

ARCH

Response to squared shocks

0.0729
19.58***
β

GARCH

Volatility persistence

0.7493
115.00***
γ

leverage

Additional response to negative shocks

0.1637
24.53***
λ₁

tau intercept

Baseline long-term coefficient

0.0063
6.78***
λ₂

forecast adj.

Forecast performance sensitivity

0.0234
7.95***
λ₃

tau persistence

Long-term factor persistence

0.9739
288.22***

Persistence:

0.904

Half-life:

7 days