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Han Kook Capital Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

24.57%

decreased by 1.38%

1 Week

25.49%

decreased by 0.46%

1 Month

28.70%

increased by 2.75%

Analysis last updated: Friday, September 11, 2026 at 08:33 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Han Kook Capital Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 26, 2001 to Sep 4, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 90 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

GJR-GARCH Model

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High persistence: persistence 0.992, shock half-life ~90 days
ParamValuet-stat
ωconst0.1100
3.58***
αARCH0.1523
3.77***
βGARCH0.8545
34.18***
γleverage-0.0291
-0.58

0.992

Persistence

90d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1100
3.58***
α

ARCH

Response to squared shocks

0.1523
3.77***
β

GARCH

Volatility persistence

0.8545
34.18***
γ

leverage

Additional response to negative shocks

-0.0291
-0.58

Persistence:

0.992

Half-life:

90 days