V-Lab
Defiance Daily Target 2X Short HOOD ETF GJR-GARCH Volatility Analysis
Inactive
Last recorded values (Friday, August 28th, 2026):
1 Day
141.69%
1 Week
142.76%
1 Month
145.73%
Analysis last updated: Wednesday, September 2, 2026 at 07:01 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 13, 2025 to Aug 27, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 12-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 0.26 |
| αARCH | 0.0344 | 0.22 |
| βGARCH | 0.9280 | 4.33*** |
| γleverage | -0.0344 | -0.19 |
0.945
Persistence12d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 0.26 |
α ARCH Response to squared shocks | 0.0344 | 0.22 |
β GARCH Volatility persistence | 0.9280 | 4.33*** |
γ leverage Additional response to negative shocks | -0.0344 | -0.19 |
Persistence:
0.945
Half-life:
12 days
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