V-Lab
Gold Troy Ounce GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
44.65%
1 Week
44.54%
1 Month
44.12%
Analysis last updated: Friday, September 11, 2026 at 08:43 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 27, 2013 to Sep 11, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 160 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.14 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 3.5433 | 1.53 |
| αARCH | 0.0205 | 13.17*** |
| βGARCH | 0.9957 | 411.26*** |
| νDF | 2.1357 | 79.30*** |
0.996
Persistence160d
Half-lifeGAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.5433 | 1.53 |
α ARCH Response to squared shocks | 0.0205 | 13.17*** |
β GARCH Volatility persistence | 0.9957 | 411.26*** |
ν DF Student-t tail thickness | 2.1357 | 79.30*** |
Persistence:
0.996
Half-life:
160 days
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