V-Lab
Dubai Financial Market General Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Sunday, September 20th, 2026
1 Day
11.94%
decreased by 0.46%
1 Week
12.65%
increased by 0.25%
1 Month
14.20%
increased by 1.80%
Analysis last updated: Friday, September 18, 2026 at 10:00 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 2004 to Sep 17, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 8 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.5323 | 3.81*** |
| αARCH | 0.1567 | 7.99*** |
| βGARCH | 0.7602 | 25.65*** |
Spline Coefficients
K=10
| γ1 | -0.5954 | -4.18*** |
| γ2 | 0.8966 | 4.60*** |
| γ3 | -0.6526 | -5.53*** |
| γ4 | 0.7637 | 5.97*** |
| γ5 | -0.7745 | -6.21*** |
| γ6 | 0.5186 | 4.23*** |
| γ7 | -0.0740 | -0.62 |
| γ8 | -0.2659 | -2.48** |
| γ9 | 0.3553 | 3.35*** |
| γ10 | -0.2349 | -2.72*** |
0.917
Persistence8d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5323 | 3.81*** |
α ARCH Response to squared shocks | 0.1567 | 7.99*** |
β GARCH Volatility persistence | 0.7602 | 25.65*** |
Spline Coefficients
K=10
| γ1 | -0.5954 | -4.18*** |
| γ2 | 0.8966 | 4.60*** |
| γ3 | -0.6526 | -5.53*** |
| γ4 | 0.7637 | 5.97*** |
| γ5 | -0.7745 | -6.21*** |
| γ6 | 0.5186 | 4.23*** |
| γ7 | -0.0740 | -0.62 |
| γ8 | -0.2659 | -2.48** |
| γ9 | 0.3553 | 3.35*** |
| γ10 | -0.2349 | -2.72*** |
Persistence:
0.917
Half-life:
8 days
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