V-Lab
WisdomTree Bloomberg U.S. Dollar Bullish Fund GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, July 28th, 2026
1 Day
4.52%
decreased by 0.13%
1 Week
4.61%
decreased by 0.04%
1 Month
4.89%
increased by 0.24%
Analysis last updated: Monday, July 27, 2026 at 09:42 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 18, 2013 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 49 trading days, meaning a shock loses half its impact after approximately 49 days. Returns follow a Student-t distribution with v = 5.63 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 | 0.1886 | 5.77*** |
α ARCH Response to squared shocks | 0.0469 | 24.05*** |
β GARCH Volatility persistence | 0.9859 | 367.60*** |
ν DF Student-t tail thickness | 5.6338 | 4.49*** |
Persistence:
0.986
Half-life:
49 days
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