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V-Lab

KOSPI 200 Volatility Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 10th, 2026

1 Day

66.19%

decreased by 2.03%

1 Week

69.33%

increased by 1.11%

1 Month

75.98%

increased by 7.76%

Analysis last updated: Friday, July 10, 2026 at 08:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of KOSPI 200 Volatility Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 2003 to Apr 30, 2026

Model Insight

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.5466
15.24***
α

ARCH

Response to squared shocks

0.2067
15.37***
β

GARCH

Volatility persistence

0.8035
102.07***
γ

leverage

Additional response to negative shocks

-0.2067
-13.35***

Persistence:

0.907

Half-life:

7 days