V-Lab
BetaPro NASDAQ-100 2x Daily Bull ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 19th, 2026
1 Day
44.40%
increased by 2.07%
1 Week
44.64%
increased by 2.31%
1 Month
45.43%
increased by 3.10%
Analysis last updated: Wednesday, August 19, 2026 at 09:08 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 18, 2008 to Aug 14, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 21 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4315 | 7.23*** |
α ARCH Response to squared shocks | 0.1160 | 8.34*** |
β GARCH Volatility persistence | 0.8509 | 51.81*** |
Spline Coefficients
K=2
| γ1 | 0.0224 | 3.97*** |
| γ2 | -0.0281 | -3.92*** |
Persistence:
0.967
Half-life:
21 days
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