Hikma Pharmaceuticals PLC APARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
38.36%
increased by 2.93%
1 Week
38.48%
increased by 3.05%
1 Month
38.77%
increased by 3.34%
Analysis last updated: Tuesday, July 14, 2026 at 06:32 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 2, 2006 to Jul 10, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 79% more than equivalent positive returns.
σ
APARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5682 | 3.47*** |
α ARCH Response to squared shocks | 0.0543 | 6.86*** |
β GARCH Volatility persistence | 0.8553 | 68.21*** |
γ leverage Additional response to negative shocks | 0.1390 | 4.82*** |
δ power Transformation power | 2.0710 | 10.53*** |
Persistence:
0.912
Half-life:
8 days
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