V-Lab
Betapro Nasdaq-100 -2X D ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 19th, 2026
1 Day
46.69%
increased by 0.95%
1 Week
46.76%
increased by 1.02%
1 Month
46.99%
increased by 1.25%
Analysis last updated: Wednesday, August 19, 2026 at 09:07 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 22 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4418 | 7.23*** |
α ARCH Response to squared shocks | 0.1167 | 8.23*** |
β GARCH Volatility persistence | 0.8520 | 53.20*** |
Spline Coefficients
K=2
| γ1 | 0.0217 | 4.00*** |
| γ2 | -0.0270 | -3.93*** |
Persistence:
0.969
Half-life:
22 days
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