V-Lab
Dayang Enterprise Holdings Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
29.28%
increased by 0.07%
1 Week
30.72%
increased by 1.51%
1 Month
33.73%
increased by 4.52%
Analysis last updated: Sunday, August 23, 2026 at 01:27 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 28, 2008 to Aug 21, 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 7 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1877 | 5.42*** |
α ARCH Response to squared shocks | 0.1070 | 6.04*** |
β GARCH Volatility persistence | 0.7973 | 22.97*** |
Spline Coefficients
K=9
| γ1 | -0.2595 | -1.43 |
| γ2 | 0.3796 | 1.31 |
| γ3 | 0.0739 | 0.34 |
| γ4 | -0.3871 | -1.60 |
| γ5 | 0.4313 | 1.74* |
| γ6 | -0.6114 | -3.07*** |
| γ7 | 0.5925 | 3.17*** |
| γ8 | -0.3034 | -1.80* |
| γ9 | 0.1299 | 1.27 |
Persistence:
0.904
Half-life:
7 days
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