V-Lab
Euro EGARCH Volatility Analysis
Volatility prediction for Friday, September 25th, 2026
1 Day
4.48%
increased by 0.12%
1 Week
4.53%
increased by 0.17%
1 Month
4.74%
increased by 0.38%
Analysis last updated: Thursday, September 24, 2026 at 08:12 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
With persistence 0.995, volatility shocks have a half-life of 140 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
EGARCH Model
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High persistence: persistence 0.995, shock half-life ~140 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | -0.0010 | -0.61 |
| αARCH | 0.0667 | 8.85*** |
| βGARCH | 0.9951 | 926.51*** |
| γleverage | -0.0061 | -0.89 |
0.995
Persistence140d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | -0.0010 | -0.61 |
α ARCH Response to squared shocks | 0.0667 | 8.85*** |
β GARCH Volatility persistence | 0.9951 | 926.51*** |
γ leverage Additional response to negative shocks | -0.0061 | -0.89 |
Persistence:
0.995
Half-life:
140 days
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