V-Lab
Roundhill 100 0Dte Strgy ETF GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, August 20th, 2026
1 Day
17.34%
decreased by 0.81%
1 Week
17.43%
decreased by 0.72%
1 Month
17.65%
decreased by 0.50%
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
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1124 | 9.40*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8242 | 65.57*** |
γ leverage Additional response to negative shocks | 0.1752 | 7.86*** |
Persistence:
0.912
Half-life:
8 days
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