V-Lab
Town Centre Securities PLC APARCH Volatility Analysis
Volatility prediction for Thursday, October 1st, 2026
1 Day
28.21%
1 Week
29.00%
1 Month
31.74%
Analysis last updated: Thursday, October 1, 2026 at 10:20 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 8, 1990 to Sep 25, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 53% more than equivalent positive returns. The volatility power δ = 1.17 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APARCH Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0779 | 5.18*** |
| αARCH | 0.0944 | 8.03*** |
| βGARCH | 0.9002 | 66.30*** |
| γleverage | 0.1810 | 1.96** |
| δpower | 1.1669 | 8.16*** |
0.977
Persistence30d
Half-lifeAPARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0779 | 5.18*** |
α ARCH Response to squared shocks | 0.0944 | 8.03*** |
β GARCH Volatility persistence | 0.9002 | 66.30*** |
γ leverage Additional response to negative shocks | 0.1810 | 1.96** |
δ power Transformation power | 1.1669 | 8.16*** |
Persistence:
0.977
Half-life:
30 days
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