Bloomberg EM USD Aggregate Bond Index Total Return Value Unhedged USD GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, July 17th, 2026
1 Day
2.53%
decreased by 0.17%
1 Week
2.68%
decreased by 0.02%
1 Month
3.19%
increased by 0.49%
Analysis last updated: Friday, July 17, 2026 at 11:36 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1997 to Apr 4, 2025Model Insight
With persistence 0.993, volatility shocks have a half-life of 103 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 6.19 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2601 | 5.81*** |
α ARCH Response to squared shocks | 0.1467 | 63.69*** |
β GARCH Volatility persistence | 0.9933 | 922.29*** |
ν DF Student-t tail thickness | 6.1909 | 15.43*** |
Persistence:
0.993
Half-life:
103 days
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