V-Lab
Wealthfront Corp GJR-GARCH Volatility Analysis
Volatility prediction for Monday, October 5th, 2026
1 Day
60.51%
increased by 13.06%
1 Week
62.08%
increased by 14.63%
1 Month
63.40%
increased by 15.95%
Analysis last updated: Friday, October 2, 2026 at 11:10 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 12, 2025 to Oct 2, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 2-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 1.96** |
| αARCH | 0.0133 | 0.29 |
| βGARCH | 0.4283 | 2.99*** |
| γleverage | 0.4998 | 0.69 |
0.692
Persistence2d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.96** |
α ARCH Response to squared shocks | 0.0133 | 0.29 |
β GARCH Volatility persistence | 0.4283 | 2.99*** |
γ leverage Additional response to negative shocks | 0.4998 | 0.69 |
Persistence:
0.692
Half-life:
2 days
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