Abbott Laboratories Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
24.66%
increased by 0.90%
1 Week
24.80%
increased by 1.04%
1 Month
25.27%
increased by 1.51%
Analysis last updated: Thursday, October 15, 2026 at 10:00 PM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 9, 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 27 trading days.
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 | 0.8578 | 7.90*** |
| αARCH | 0.0548 | 7.10*** |
| βGARCH | 0.9194 | 83.80*** |
Spline Coefficients
K=3
| γ1 | -0.0128 | -4.87*** |
| γ2 | 0.0212 | 5.43*** |
| γ3 | -0.0113 | -4.71*** |
0.974
Persistence27d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8578 | 7.90*** |
α ARCH Response to squared shocks | 0.0548 | 7.10*** |
β GARCH Volatility persistence | 0.9194 | 83.80*** |
Spline Coefficients
K=3
| γ1 | -0.0128 | -4.87*** |
| γ2 | 0.0212 | 5.43*** |
| γ3 | -0.0113 | -4.71*** |
Persistence:
0.974
Half-life:
27 days
Other Abbott Laboratories Analyses
Other Zero Slope Spline-GARCH Analyses on Equities