V-Lab
United States Dollar Index EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
5.17%
increased by 0.01%
1 Week
5.22%
increased by 0.06%
1 Month
5.42%
increased by 0.26%
Analysis last updated: Saturday, September 12, 2026 at 12:50 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Sep 10, 2026Model Insight
With persistence 0.991, volatility shocks have a half-life of 75 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
EGARCH Model
Tap to view equation
High persistence: persistence 0.991, shock half-life ~75 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | -0.0107 | -3.83*** |
| αARCH | 0.0914 | 10.11*** |
| βGARCH | 0.9909 | 543.23*** |
| γleverage | -0.0012 | -0.14 |
0.991
Persistence75d
Half-lifeσ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | -0.0107 | -3.83*** |
α ARCH Response to squared shocks | 0.0914 | 10.11*** |
β GARCH Volatility persistence | 0.9909 | 543.23*** |
γ leverage Additional response to negative shocks | -0.0012 | -0.14 |
Persistence:
0.991
Half-life:
75 days
Other United States Dollar Index Analyses
Other EGARCH Analyses on Currencies