V-Lab
Roundhill 100 0Dte Strgy ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, August 20th, 2026
1 Day
29.40%
decreased by 0.77%
1 Week
30.17%
increased by 0.00%
1 Month
30.33%
increased by 0.16%
Analysis last updated: Wednesday, August 19, 2026 at 09:20 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 6, 2024 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.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2953 | 3.95*** |
α ARCH Response to squared shocks | 0.0640 | 1.24 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=8
| γ1 | 28.4738 | 2.84*** |
| γ2 | -46.8269 | -3.04*** |
| γ3 | 40.4254 | 3.36*** |
| γ4 | -52.8148 | -4.63*** |
| γ5 | 57.0127 | 5.69*** |
| γ6 | -38.5538 | -4.05*** |
| γ7 | 20.4220 | 2.27** |
| γ8 | -12.9089 | -2.23** |
Persistence:
0.064
Half-life:
0 days
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