Wealthfront Corp Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, October 26th, 2026
1 Day
46.61%
decreased by 3.63%
1 Week
49.79%
decreased by 0.45%
1 Month
50.52%
increased by 0.28%
Analysis last updated: Friday, October 23, 2026 at 10:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 12, 2025 to Oct 23, 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
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3106 | 4.04*** |
| αARCH | 0.1610 | 1.47 |
| βGARCH | 0.0000 | 0.00 |
Spline Coefficients
K=1
| γ1 | 0.9755 | 1.27 |
0.161
Persistence0d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3106 | 4.04*** |
α ARCH Response to squared shocks | 0.1610 | 1.47 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=1
| γ1 | 0.9755 | 1.27 |
Persistence:
0.161
Half-life:
0 days
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