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V-Lab

Han Kook Capital Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Thursday, July 30th, 2026

1 Day

49.51%

decreased by 5.42%

1 Week

49.88%

decreased by 5.05%

1 Month

51.35%

decreased by 3.58%

Analysis last updated: Thursday, July 30, 2026 at 07:48 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Han Kook Capital Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 26, 2001 to Jul 24, 2026

Model Insight

With persistence 0.999, volatility shocks have a half-life of 693 trading days (~2.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.56 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

83.8421
7.35***
α

ARCH

Response to squared shocks

0.1090
130.50***
β

GARCH

Volatility persistence

0.9990
7,511.28***
ν

DF

Student-t tail thickness

2.5585
374.98***

Persistence:

0.999

Half-life:

693 days