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Hikma Pharmaceuticals PLC GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

38.00%

decreased by 1.06%

1 Week

38.20%

decreased by 0.86%

1 Month

38.67%

decreased by 0.39%

Analysis last updated: Wednesday, September 16, 2026 at 05:51 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Hikma Pharmaceuticals PLC GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 2, 2006 to Sep 14, 2026

Model Insight

Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 8-day half-life
ParamValuet-stat
ωconst0.5293
1.96*
αARCH0.0400
2.08**
βGARCH0.8570
18.48***
γleverage0.0330
0.86

0.913

Persistence

8d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.5293
1.96*
α

ARCH

Response to squared shocks

0.0400
2.08**
β

GARCH

Volatility persistence

0.8570
18.48***
γ

leverage

Additional response to negative shocks

0.0330
0.86

Persistence:

0.913

Half-life:

8 days