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V-Lab
V-Lab

British Pound EGARCH Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

4.33%

increased by 0.04%

1 Week

4.40%

increased by 0.11%

1 Month

4.69%

increased by 0.40%

Analysis last updated: Monday, September 14, 2026 at 07:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of British Pound EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 89 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

EGARCH Model

Tap to view equation

High persistence: persistence 0.992, shock half-life ~89 days
ParamValuet-stat
ωconst-0.0038
-1.59
αARCH0.0782
6.41***
βGARCH0.9922
524.44***
γleverage-0.0136
-1.42

0.992

Persistence

89d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

-0.0038
-1.59
α

ARCH

Response to squared shocks

0.0782
6.41***
β

GARCH

Volatility persistence

0.9922
524.44***
γ

leverage

Additional response to negative shocks

-0.0136
-1.42

Persistence:

0.992

Half-life:

89 days