V-Lab
Planetel Spa GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, August 4th, 2026
1 Day
37.17%
decreased by 5.99%
1 Week
37.87%
decreased by 5.29%
1 Month
39.79%
decreased by 3.37%
Analysis last updated: Tuesday, August 4, 2026 at 06:32 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 15, 2021 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days. Returns follow a Student-t distribution with v = 3.00 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 | 7.5159 | 2.60*** |
α ARCH Response to squared shocks | 0.1530 | 13.63*** |
β GARCH Volatility persistence | 0.9457 | 41.86*** |
ν DF Student-t tail thickness | 3.0028 | 11.34*** |
Persistence:
0.946
Half-life:
12 days
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