V-Lab
Avon Technologies PLC GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
52.34%
decreased by 3.03%
1 Week
53.56%
decreased by 1.81%
1 Month
54.27%
decreased by 1.10%
Analysis last updated: Wednesday, September 16, 2026 at 05:42 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 30, 2020 to Sep 14, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 1-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 1.89* |
| αARCH | 0.1219 | 1.12 |
| βGARCH | 0.4754 | 2.37** |
| γleverage | -0.0427 | -0.25 |
0.576
Persistence1d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.89* |
α ARCH Response to squared shocks | 0.1219 | 1.12 |
β GARCH Volatility persistence | 0.4754 | 2.37** |
γ leverage Additional response to negative shocks | -0.0427 | -0.25 |
Persistence:
0.576
Half-life:
1 days
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