V-Lab
Guangdong Shunna Electric Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
84.66%
increased by 16.28%
1 Week
82.37%
increased by 13.99%
1 Month
75.04%
increased by 6.66%
Analysis last updated: Saturday, July 25, 2026 at 11:18 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1994 to Jul 24, 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 15 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.7978 | 3.92*** |
α ARCH Response to squared shocks | 0.1410 | 11.07*** |
β GARCH Volatility persistence | 0.8152 | 55.69*** |
Spline Coefficients
K=6
| γ1 | -0.0176 | -0.78 |
| γ2 | 0.0921 | 2.70*** |
| γ3 | -0.1512 | -5.82*** |
| γ4 | 0.1195 | 4.97*** |
| γ5 | -0.0484 | -1.83* |
| γ6 | 0.0021 | 0.10 |
Persistence:
0.956
Half-life:
15 days
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