South Korean Won GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, November 2nd, 2026
1 Day
6.97%
1 Week
7.02%
1 Month
7.20%
Analysis last updated: Friday, October 30, 2026 at 07:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1998 to Oct 30, 2026Model 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 = 4.05 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 1.5309 | 1.23 |
| αscore | 0.0653 | 23.68*** |
| βpersistence | 0.9990 | 1,275.86*** |
| νDF | 4.0489 | 12.72*** |
0.999
Persistence693d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 1.5309 | 1.23 |
α score Weight on the scaled score | 0.0653 | 23.68*** |
β persistence Volatility persistence | 0.9990 | 1,275.86*** |
ν DF Student-t tail thickness | 4.0489 | 12.72*** |
Persistence:
0.999
Half-life:
693 days
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