V-Lab
Grupo Comercial Chedraui SA de CV GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
19.42%
decreased by 0.47%
1 Week
20.02%
increased by 0.13%
1 Month
21.79%
increased by 1.90%
Analysis last updated: Sunday, August 23, 2026 at 12:15 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
Volatility shocks decay with a half-life of 17 trading days, meaning a shock loses half its impact after approximately 17 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1077 | 16.77*** |
α ARCH Response to squared shocks | 0.0681 | 15.02*** |
β GARCH Volatility persistence | 0.8842 | 218.49*** |
γ leverage Additional response to negative shocks | 0.0170 | 1.90* |
Persistence:
0.961
Half-life:
17 days
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