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Korea Stock Exchange KOSPI Index MF2-GARCH Volatility Analysis

Volatility prediction for Thursday, October 15th, 2026

1 Day

54.40%

decreased by 4.07%

1 Week

53.33%

decreased by 5.14%

1 Month

51.44%

decreased by 7.03%

Analysis last updated: Wednesday, October 14, 2026 at 09:11 AM UTC

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Date Range:

from

10/14/2024

to

10/14/2026

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 Oct 8, 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
αARCH0.0312
3.05***
βGARCH0.8082
47.01***
γleverage0.1484
8.49***
λ₁tau intercept0.0025
1.62
λ₂forecast adj.0.0287
4.47***
λ₃tau persistence0.9706
146.40***

0.914

Persistence

8d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.0312
3.05***
β

GARCH

Volatility persistence

0.8082
47.01***
γ

leverage

Additional response to negative shocks

0.1484
8.49***
λ₁

tau intercept

Baseline long-term coefficient

0.0025
1.62
λ₂

forecast adj.

Forecast performance sensitivity

0.0287
4.47***
λ₃

tau persistence

Long-term factor persistence

0.9706
146.40***

Persistence:

0.914

Half-life:

8 days