Bloomberg US Aggregate: Government-Related Total Return Index Unhedged USD GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
3.66%
increased by 0.37%
1 Week
3.65%
increased by 0.36%
1 Month
3.63%
increased by 0.34%
Analysis last updated: Friday, October 16, 2026 at 11:50 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 30, 1993 to Oct 8, 2026Model Insight
Volatility shocks decay with a half-life of 50 trading days, meaning a shock loses half its impact after approximately 50 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 50-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0007 | 5.28*** |
| αARCH | 0.0621 | 5.24*** |
| βGARCH | 0.9178 | 129.45*** |
| γleverage | 0.0129 | 0.58 |
0.986
Persistence50d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0007 | 5.28*** |
α ARCH Response to squared shocks | 0.0621 | 5.24*** |
β GARCH Volatility persistence | 0.9178 | 129.45*** |
γ leverage Additional response to negative shocks | 0.0129 | 0.58 |
Persistence:
0.986
Half-life:
50 days
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