V-Lab
Planetel Spa GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
53.28%
decreased by 4.56%
1 Week
52.23%
decreased by 5.61%
1 Month
49.22%
decreased by 8.62%
Analysis last updated: Wednesday, August 26, 2026 at 08:06 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 15, 2021 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days. Returns follow a Student-t distribution with v = 2.99 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 | 7.3131 | 2.63*** |
α ARCH Response to squared shocks | 0.1525 | 12.73*** |
β GARCH Volatility persistence | 0.9410 | 38.62*** |
ν DF Student-t tail thickness | 2.9914 | 10.70*** |
Persistence:
0.941
Half-life:
11 days
Other Planetel Spa Analyses
Other GAS-GARCH Student T Analyses on International Equities