V-Lab
Loreal Sa GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
27.65%
decreased by 0.65%
1 Week
27.47%
decreased by 0.83%
1 Month
26.84%
decreased by 1.46%
Analysis last updated: Wednesday, August 26, 2026 at 07:21 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 4, 2017 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 29 trading days, meaning a shock loses half its impact after approximately 29 days. Returns follow a Student-t distribution with v = 3.94 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 | 2.1781 | 3.57*** |
α ARCH Response to squared shocks | 0.0397 | 8.36*** |
β GARCH Volatility persistence | 0.9764 | 162.59*** |
ν DF Student-t tail thickness | 3.9359 | 3.57*** |
Persistence:
0.976
Half-life:
29 days
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