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V-Lab

KOSPI 200 Volatility Index GARCH Volatility Analysis

Volatility prediction for Monday, July 20th, 2026

1 Day

72.76%

decreased by 4.67%

1 Week

77.14%

decreased by 0.29%

1 Month

84.85%

increased by 7.42%

Analysis last updated: Friday, July 17, 2026 at 11:36 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of KOSPI 200 Volatility Index GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 2003 to Jul 16, 2026

Model Insight

Volatility shocks decay with a half-life of 5 trading days, meaning a shock loses half its impact after approximately 5 days.

σ

GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.1187
19.52***
α

ARCH

Response to squared shocks

0.1831
26.39***
β

GARCH

Volatility persistence

0.6912
64.98***

Persistence:

0.874

Half-life:

5 days