V-Lab
Tate & Lyle Plc GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
23.14%
increased by 0.16%
1 Week
25.98%
increased by 3.00%
1 Month
30.15%
increased by 7.17%
Analysis last updated: Wednesday, September 16, 2026 at 06:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 3, 2010 to Sep 10, 2026Model Insight
Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 4-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6427 | 4.36*** |
| αARCH | 0.1775 | 2.62*** |
| βGARCH | 0.6579 | 10.83*** |
| γleverage | 0.0272 | 0.29 |
0.849
Persistence4d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6427 | 4.36*** |
α ARCH Response to squared shocks | 0.1775 | 2.62*** |
β GARCH Volatility persistence | 0.6579 | 10.83*** |
γ leverage Additional response to negative shocks | 0.0272 | 0.29 |
Persistence:
0.849
Half-life:
4 days
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