Bloomberg US Intermediate Government/Credit Bond Index Total Return Unhedged USD MF2-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
2.99%
1 Week
2.96%
1 Month
2.88%
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
Feb 28, 1994 to Oct 8, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 323 trading days (~1.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0237 | 4.32*** |
| βGARCH | 0.9705 | 187.53*** |
| γleverage | 0.0073 | 1.23 |
| λ₁tau intercept | 0.0349 | 1.58 |
| λ₂forecast adj. | 0.2942 | 2.01** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.998
Persistence323d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0237 | 4.32*** |
β GARCH Volatility persistence | 0.9705 | 187.53*** |
γ leverage Additional response to negative shocks | 0.0073 | 1.23 |
λ₁ tau intercept Baseline long-term coefficient | 0.0349 | 1.58 |
λ₂ forecast adj. Forecast performance sensitivity | 0.2942 | 2.01** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.998
Half-life:
323 days
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