V-Lab
Wealthfront Corp Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
50.07%
decreased by 1.85%
1 Week
53.66%
increased by 1.74%
1 Month
54.51%
increased by 2.59%
Analysis last updated: Friday, July 24, 2026 at 10:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 12, 2025 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 | 1.2890 | 3.31*** |
α ARCH Response to squared shocks | 0.1840 | 1.37 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=1
| γ1 | 1.8479 | 0.99 |
Persistence:
0.184
Half-life:
0 days
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