V-Lab
Roundhill 100 0Dte Strgy ETF Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Thursday, July 30th, 2026
1 Day
31.80%
increased by 1.40%
1 Week
31.81%
increased by 1.41%
1 Month
31.81%
increased by 1.41%
Analysis last updated: Wednesday, July 29, 2026 at 09:19 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 6, 2024 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.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3593 | 3.67*** |
α ARCH Response to squared shocks | 0.1072 | 1.86* |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=9
| γ1 | 38.5522 | 2.36** |
| γ2 | -60.4528 | -2.42** |
| γ3 | 41.1276 | 2.45** |
| γ4 | -27.7361 | -2.14** |
| γ5 | -12.5766 | -1.05 |
| γ6 | 62.8058 | 4.14*** |
| γ7 | -74.0111 | -4.82*** |
| γ8 | 48.5932 | 4.08*** |
| γ9 | -21.9590 | -2.87*** |
Persistence:
0.107
Half-life:
0 days
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