V-Lab
GoHealth Inc Zero Slope Spline-GARCH Volatility Analysis
Inactive
Last recorded values (Wednesday, July 22nd, 2026):
1 Day
166.33%
1 Week
170.60%
1 Month
172.64%
Analysis last updated: Wednesday, July 22, 2026 at 10:35 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 15, 2020 to Jul 17, 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. Short-run deviations decay with a half-life of 1 trading day.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9469 | 3.33*** |
α ARCH Response to squared shocks | 0.1359 | 2.21** |
β GARCH Volatility persistence | 0.3726 | 2.15** |
Spline Coefficients
K=10
| γ1 | 1.5566 | 0.26 |
| γ2 | -0.0507 | -0.01 |
| γ3 | -3.7698 | -0.69 |
| γ4 | 3.7708 | 1.28 |
| γ5 | -5.4712 | -1.82* |
| γ6 | 8.9230 | 3.26*** |
| γ7 | -6.5934 | -2.75*** |
| γ8 | 0.1142 | 0.05 |
| γ9 | 5.0825 | 1.86* |
| γ10 | -5.7172 | -2.52** |
Persistence:
0.509
Half-life:
1 days
Other GoHealth Inc Analyses
Other Zero Slope Spline-GARCH Analyses on Equities