V-Lab
Grupo Comercial Chedraui SA de CV Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
20.64%
decreased by 0.47%
1 Week
21.39%
increased by 0.28%
1 Month
23.48%
increased by 2.37%
Analysis last updated: Sunday, August 23, 2026 at 12:16 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 30, 2010 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 15 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8617 | 12.42*** |
α ARCH Response to squared shocks | 0.0795 | 7.27*** |
β GARCH Volatility persistence | 0.8748 | 49.11*** |
Spline Coefficients
K=1
| γ1 | -0.0013 | -2.15** |
Persistence:
0.954
Half-life:
15 days
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