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SRT Marine Systems PLC GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 21st, 2026

1 Day

40.99%

decreased by 0.22%

1 Week

45.11%

increased by 3.90%

1 Month

52.52%

increased by 11.31%

Analysis last updated: Sunday, September 20, 2026 at 04:12 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of SRT Marine Systems PLC GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2007 to Sep 18, 2026
Illiquid Asset

Model Insight

Volatility shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 6-day half-life
ParamValuet-stat
ωconst1.5372
3.24***
αARCH0.0735
2.31**
βGARCH0.7573
14.03***
γleverage0.1135
1.26

0.888

Persistence

6d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.5372
3.24***
α

ARCH

Response to squared shocks

0.0735
2.31**
β

GARCH

Volatility persistence

0.7573
14.03***
γ

leverage

Additional response to negative shocks

0.1135
1.26

Persistence:

0.888

Half-life:

6 days