V-Lab
Betapro Nasdaq-100 -2X D ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, July 30th, 2026
1 Day
45.28%
increased by 3.65%
1 Week
45.42%
increased by 3.79%
1 Month
45.85%
increased by 4.22%
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
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 | 1.4396 | 7.25*** |
α ARCH Response to squared shocks | 0.1162 | 8.20*** |
β GARCH Volatility persistence | 0.8522 | 53.12*** |
Spline Coefficients
K=2
| γ1 | 0.0217 | 3.97*** |
| γ2 | -0.0269 | -3.90*** |
Persistence:
0.968
Half-life:
22 days
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