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V-Lab

Korea Stock Exchange KOSPI Index MF2-GARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

44.62%

increased by 0.40%

1 Week

46.45%

increased by 2.23%

1 Month

49.94%

increased by 5.72%

Analysis last updated: Friday, September 11, 2026 at 09:13 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Korea Stock Exchange KOSPI Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 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

MF2-GARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
mwindow21
αARCH0.0302
2.94***
βGARCH0.8061
45.92***
γleverage0.1500
8.49***
λ₁tau intercept0.0025
1.59
λ₂forecast adj.0.0299
4.55***
λ₃tau persistence0.9695
143.89***

0.911

Persistence

7d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0302
2.94***
β

GARCH

Volatility persistence

0.8061
45.92***
γ

leverage

Additional response to negative shocks

0.1500
8.49***
λ₁

tau intercept

Baseline long-term coefficient

0.0025
1.59
λ₂

forecast adj.

Forecast performance sensitivity

0.0299
4.55***
λ₃

tau persistence

Long-term factor persistence

0.9695
143.89***

Persistence:

0.911

Half-life:

7 days