V-Lab
General Electric Co Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 28th, 2026
1 Day
30.15%
increased by 0.49%
1 Week
30.25%
increased by 0.59%
1 Month
30.56%
increased by 0.90%
Analysis last updated: Monday, July 27, 2026 at 09:38 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 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. Short-run deviations decay with a half-life of 19 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8219 | 7.16*** |
α ARCH Response to squared shocks | 0.0721 | 6.80*** |
β GARCH Volatility persistence | 0.8913 | 56.07*** |
Spline Coefficients
K=8
| γ1 | 0.0314 | 1.44 |
| γ2 | 0.0041 | 0.12 |
| γ3 | -0.1403 | -4.49*** |
| γ4 | 0.2263 | 8.07*** |
| γ5 | -0.2367 | -8.83*** |
| γ6 | 0.2375 | 7.26*** |
| γ7 | -0.2091 | -6.11*** |
| γ8 | 0.1094 | 4.34*** |
Persistence:
0.963
Half-life:
19 days
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