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Hikma Pharmaceuticals PLC APARCH Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

35.99%

increased by 1.23%

1 Week

36.52%

increased by 1.76%

1 Month

37.70%

increased by 2.94%

Analysis last updated: Saturday, October 17, 2026 at 08:41 PM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Hikma Pharmaceuticals PLC APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 2, 2006 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days.

σ

APARCH Model

Tap to view equation

Shock decay: Shocks decay with a 7-day half-life
ParamValuet-stat
ωconst0.6117
0.87
αARCH0.0557
1.74*
βGARCH0.8482
16.02***
γleverage0.1390
1.23
δpower2.0966
2.67***

0.907

Persistence

7d

Half-life
σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.6117
0.87
α

ARCH

Response to squared shocks

0.0557
1.74*
β

GARCH

Volatility persistence

0.8482
16.02***
γ

leverage

Additional response to negative shocks

0.1390
1.23
δ

power

Transformation power

2.0966
2.67***

Persistence:

0.907

Half-life:

7 days