V-Lab
Grupo Carso Sab De Cv GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
43.69%
increased by 0.05%
1 Week
43.72%
increased by 0.08%
1 Month
43.83%
increased by 0.19%
Analysis last updated: Sunday, July 26, 2026 at 12:09 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 4, 2008 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 19 trading days, meaning a shock loses half its impact after approximately 19 days. Returns follow a Student-t distribution with v = 5.38 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 7.7388 | 8.53*** |
α ARCH Response to squared shocks | 0.0693 | 19.57*** |
β GARCH Volatility persistence | 0.9649 | 198.18*** |
ν DF Student-t tail thickness | 5.3816 | 4.88*** |
Persistence:
0.965
Half-life:
19 days
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