V-Lab
Betapro Nasdaq-100 -2X D ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Thursday, July 30th, 2026
1 Day
48.87%
increased by 4.45%
1 Week
48.78%
increased by 4.36%
1 Month
48.46%
increased by 4.04%
Analysis last updated: Thursday, July 30, 2026 at 09:06 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 18, 2008 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 44 trading days, meaning a shock loses half its impact after approximately 44 days. Returns follow a Student-t distribution with v = 7.16 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 | 8.3516 | 5.47*** |
α ARCH Response to squared shocks | 0.1030 | 24.41*** |
β GARCH Volatility persistence | 0.9843 | 313.97*** |
ν DF Student-t tail thickness | 7.1636 | 5.41*** |
Persistence:
0.984
Half-life:
44 days
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