V-Lab
Sichuan Haite High-tech Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
43.96%
decreased by 0.38%
1 Week
43.90%
decreased by 0.44%
1 Month
43.68%
decreased by 0.66%
Analysis last updated: Wednesday, August 26, 2026 at 07:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 21, 2004 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 26 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2628 | 9.29*** |
α ARCH Response to squared shocks | 0.0616 | 7.05*** |
β GARCH Volatility persistence | 0.9119 | 71.64*** |
Spline Coefficients
K=1
| γ1 | 0.0013 | 2.60*** |
Persistence:
0.973
Half-life:
26 days
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