V-Lab
Jinbei Automotive Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
30.51%
decreased by 0.09%
1 Week
31.52%
increased by 0.92%
1 Month
34.02%
increased by 3.42%
Analysis last updated: Saturday, August 8, 2026 at 06:31 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 24, 1992 to Aug 7, 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 10 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3695 | 4.17*** |
α ARCH Response to squared shocks | 0.1101 | 8.40*** |
β GARCH Volatility persistence | 0.8215 | 40.44*** |
Spline Coefficients
K=6
| γ1 | -0.0342 | -1.03 |
| γ2 | 0.0786 | 1.68* |
| γ3 | -0.0732 | -3.18*** |
| γ4 | 0.0492 | 3.00*** |
| γ5 | -0.0429 | -2.82*** |
| γ6 | 0.0349 | 2.97*** |
Persistence:
0.932
Half-life:
10 days
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