V-Lab
iShares 0-1 Year Treasury Bond ETF MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 30th, 2026
1 Day
0.32%
increased by 0.02%
1 Week
0.32%
increased by 0.02%
1 Month
0.33%
increased by 0.03%
Analysis last updated: Tuesday, September 29, 2026 at 09:37 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 11, 2007 to Sep 25, 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 | 0.0881 | 3.66*** |
| βGARCH | 0.7127 | 14.41*** |
| γleverage | 0.0637 | 1.61 |
| λ₁tau intercept | 0.0000 | 1.00 |
| λ₂forecast adj. | 0.0674 | 4.60*** |
| λ₃tau persistence | 0.9304 | 61.42*** |
0.833
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 | 0.0881 | 3.66*** |
β GARCH Volatility persistence | 0.7127 | 14.41*** |
γ leverage Additional response to negative shocks | 0.0637 | 1.61 |
λ₁ tau intercept Baseline long-term coefficient | 0.0000 | 1.00 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0674 | 4.60*** |
λ₃ tau persistence Long-term factor persistence | 0.9304 | 61.42*** |
Persistence:
0.833
Half-life:
4 days
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