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

Volatility prediction for Friday, September 11th, 2026

1 Day

26.64%

decreased by 3.25%

1 Week

27.40%

decreased by 2.49%

1 Month

30.22%

increased by 0.33%

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

Date Range:

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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 Sep 4, 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

High persistence: persistence 0.999, shock half-life ~693 daysv = 2.56 · fat tails
ParamValuet-stat
ωconst84.1961
1.84*
αARCH0.1090
32.63***
βGARCH0.9990
1,881.36***
νDF2.5554
94.51***

0.999

Persistence

693d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

84.1961
1.84*
α

ARCH

Response to squared shocks

0.1090
32.63***
β

GARCH

Volatility persistence

0.9990
1,881.36***
ν

DF

Student-t tail thickness

2.5554
94.51***

Persistence:

0.999

Half-life:

693 days