Bloomberg Asian Pacific Aggregate Bond Index Total Return Value Unhedged JPY GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
4.17%
1 Week
4.16%
1 Month
4.12%
Analysis last updated: Friday, October 16, 2026 at 11:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 30, 2000 to Oct 8, 2026Model Insight
With persistence 0.995, volatility shocks have a half-life of 145 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 5.70 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 0.0353 | 1.44 |
| αscore | 0.0555 | 12.50*** |
| βpersistence | 0.9952 | 339.67*** |
| νDF | 5.6998 | 3.03*** |
0.995
Persistence145d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 0.0353 | 1.44 |
α score Weight on the scaled score | 0.0555 | 12.50*** |
β persistence Volatility persistence | 0.9952 | 339.67*** |
ν DF Student-t tail thickness | 5.6998 | 3.03*** |
Persistence:
0.995
Half-life:
145 days
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