V-Lab
IBEX 35 Index EGARCH Volatility Analysis
Volatility prediction for Wednesday, September 16th, 2026
1 Day
15.36%
decreased by 0.79%
1 Week
15.63%
decreased by 0.52%
1 Month
16.58%
increased by 0.43%
Analysis last updated: Tuesday, September 15, 2026 at 04:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 243% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
Leverage: Negative returns increase volatility 243% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0159 | 2.05** |
| αARCH | 0.1585 | 7.31*** |
| βGARCH | 0.9724 | 227.79*** |
| γleverage | -0.0869 | -6.05*** |
0.972
Persistence25d
Half-lifeσ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0159 | 2.05** |
α ARCH Response to squared shocks | 0.1585 | 7.31*** |
β GARCH Volatility persistence | 0.9724 | 227.79*** |
γ leverage Additional response to negative shocks | -0.0869 | -6.05*** |
Persistence:
0.972
Half-life:
25 days
Other IBEX 35 Index Analyses
Other EGARCH Analyses on Equity Indices