V-Lab
Docebo Inc GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
63.16%
decreased by 1.98%
1 Week
63.20%
decreased by 1.94%
1 Month
63.32%
decreased by 1.82%
Analysis last updated: Tuesday, August 25, 2026 at 09:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 4, 2020 to Aug 21, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 254 trading days (~1.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 4.09 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 | 18.7389 | 8.18*** |
α ARCH Response to squared shocks | 0.0376 | 29.54*** |
β GARCH Volatility persistence | 0.9973 | 2,747.32*** |
ν DF Student-t tail thickness | 4.0934 | 20.50*** |
Persistence:
0.997
Half-life:
254 days
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