V-Lab
iShares 0-1 Year Treasury Bond ETF EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
0.36%
decreased by 0.01%
1 Week
0.36%
decreased by 0.01%
1 Month
0.36%
decreased by 0.01%
Analysis last updated: Thursday, September 10, 2026 at 09:41 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 11, 2007 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 68 trading days, meaning a shock loses half its impact after approximately 68 days.
σ
EGARCH Model
Tap to view equation
Shock decay: Shocks decay with a 68-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | -0.0781 | -1.15 |
| αARCH | 0.1133 | 4.79*** |
| βGARCH | 0.9899 | 99.97*** |
| γleverage | 0.0307 | 0.92 |
0.990
Persistence68d
Half-lifeσ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | -0.0781 | -1.15 |
α ARCH Response to squared shocks | 0.1133 | 4.79*** |
β GARCH Volatility persistence | 0.9899 | 99.97*** |
γ leverage Additional response to negative shocks | 0.0307 | 0.92 |
Persistence:
0.990
Half-life:
68 days
Other iShares 0-1 Year Treasury Bond ETF Analyses
Other EGARCH Analyses on ETFs