V-Lab
Sunjuice Holdings Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
30.05%
decreased by 0.13%
1 Week
31.76%
increased by 1.58%
1 Month
34.79%
increased by 4.61%
Analysis last updated: Friday, September 11, 2026 at 09:23 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 5, 2012 to Sep 4, 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 5 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 | 1.0686 | 7.19*** |
| αARCH | 0.1161 | 5.50*** |
| βGARCH | 0.7586 | 16.03*** |
Spline Coefficients
K=3
| γ1 | -0.0398 | -1.76* |
| γ2 | 0.0745 | 2.16** |
| γ3 | -0.0470 | -2.41** |
0.875
Persistence5d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0686 | 7.19*** |
α ARCH Response to squared shocks | 0.1161 | 5.50*** |
β GARCH Volatility persistence | 0.7586 | 16.03*** |
Spline Coefficients
K=3
| γ1 | -0.0398 | -1.76* |
| γ2 | 0.0745 | 2.16** |
| γ3 | -0.0470 | -2.41** |
Persistence:
0.875
Half-life:
5 days
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