V-Lab
Ardagh Metal Packaging S A Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 22nd, 2026
1 Day
46.06%
increased by 1.51%
1 Week
50.50%
increased by 5.95%
1 Month
54.92%
increased by 10.37%
Analysis last updated: Tuesday, September 22, 2026 at 07:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 11, 2021 to Sep 18, 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 2 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 | 1.1620 | 8.51*** |
| αARCH | 0.1780 | 4.62*** |
| βGARCH | 0.5736 | 6.62*** |
Spline Coefficients
K=1
| γ1 | 0.0133 | 1.47 |
0.752
Persistence2d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1620 | 8.51*** |
α ARCH Response to squared shocks | 0.1780 | 4.62*** |
β GARCH Volatility persistence | 0.5736 | 6.62*** |
Spline Coefficients
K=1
| γ1 | 0.0133 | 1.47 |
Persistence:
0.752
Half-life:
2 days
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