iShares 0-1 Year Treasury Bond ETF MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 20th, 2026
1 Day
0.33%
decreased by 0.03%
1 Week
0.34%
decreased by 0.02%
1 Month
0.35%
decreased by 0.01%
Analysis last updated: Monday, October 19, 2026 at 09:30 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 11, 2007 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 4-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0877 | 3.64*** |
| βGARCH | 0.7138 | 14.19*** |
| γleverage | 0.0615 | 1.56 |
| λ₁tau intercept | 0.0000 | 1.00 |
| λ₂forecast adj. | 0.0663 | 4.59*** |
| λ₃tau persistence | 0.9315 | 62.78*** |
0.832
Persistence4d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0877 | 3.64*** |
β GARCH Volatility persistence | 0.7138 | 14.19*** |
γ leverage Additional response to negative shocks | 0.0615 | 1.56 |
λ₁ tau intercept Baseline long-term coefficient | 0.0000 | 1.00 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0663 | 4.59*** |
λ₃ tau persistence Long-term factor persistence | 0.9315 | 62.78*** |
Persistence:
0.832
Half-life:
4 days
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