V-Lab
Korea Cast Iron Pipe Industries Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
16.32%
1 Week
17.62%
1 Month
21.99%
Analysis last updated: Sunday, September 20, 2026 at 12:38 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Sep 18, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 204 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.94 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| ωconst | 27.0692 | 1.49 |
| αARCH | 0.1060 | 35.83*** |
| βGARCH | 0.9966 | 458.64*** |
| νDF | 2.9449 | 42.27*** |
0.997
Persistence204d
Half-lifeGAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 27.0692 | 1.49 |
α ARCH Response to squared shocks | 0.1060 | 35.83*** |
β GARCH Volatility persistence | 0.9966 | 458.64*** |
ν DF Student-t tail thickness | 2.9449 | 42.27*** |
Persistence:
0.997
Half-life:
204 days
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