Han Kook Capital Co Ltd EGARCH Volatility Analysis
Volatility prediction for Monday, October 19th, 2026
1 Day
24.87%
increased by 6.14%
1 Week
26.02%
increased by 7.29%
1 Month
30.38%
increased by 11.65%
Analysis last updated: Sunday, October 18, 2026 at 12:33 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 26, 2001 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 23 trading days, meaning a shock loses half its impact after approximately 23 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 23-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0724 | 3.16*** |
| αARCH | 0.2174 | 3.54*** |
| βGARCH | 0.9700 | 92.57*** |
| γleverage | 0.0182 | 0.73 |
0.970
Persistence23d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0724 | 3.16*** |
α ARCH Response to squared shocks | 0.2174 | 3.54*** |
β GARCH Volatility persistence | 0.9700 | 92.57*** |
γ leverage Additional response to negative shocks | 0.0182 | 0.73 |
Persistence:
0.970
Half-life:
23 days
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