V-Lab
Hikma Pharmaceuticals PLC GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
36.66%
decreased by 0.86%
1 Week
37.08%
decreased by 0.44%
1 Month
38.06%
increased by 0.54%
Analysis last updated: Wednesday, August 5, 2026 at 06:41 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 2, 2006 to Jul 31, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 78% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5268 | 7.85*** |
α ARCH Response to squared shocks | 0.0407 | 8.39*** |
β GARCH Volatility persistence | 0.8572 | 74.42*** |
γ leverage Additional response to negative shocks | 0.0319 | 3.35*** |
Persistence:
0.914
Half-life:
8 days
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