V-Lab
Bitcoin to US Dollar GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
46.83%
1 Week
48.59%
1 Month
55.04%
Analysis last updated: Tuesday, September 8, 2026 at 06:11 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 17, 2010 to Sep 5, 2026Model Insight
With persistence 0.999, volatility shocks have a half-life of 693 trading days (~2.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.67 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 342.4710 | 1.69* |
| αARCH | 0.1067 | 29.73*** |
| βGARCH | 0.9990 | 1,743.46*** |
| νDF | 2.6749 | 58.00*** |
0.999
Persistence693d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 342.4710 | 1.69* |
α ARCH Response to squared shocks | 0.1067 | 29.73*** |
β GARCH Volatility persistence | 0.9990 | 1,743.46*** |
ν DF Student-t tail thickness | 2.6749 | 58.00*** |
Persistence:
0.999
Half-life:
693 days
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