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Samhallsbygg I Nor EGARCH Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

52.55%

increased by 0.69%

1 Week

53.29%

increased by 1.43%

1 Month

56.24%

increased by 4.38%

Analysis last updated: Tuesday, September 8, 2026 at 08:04 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Samhallsbygg I Nor EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 3, 2023 to Sep 4, 2026

Model Insight

With persistence 0.991, volatility shocks have a half-life of 78 trading days (~0.3 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 0.991, shock half-life ~78 days
ParamValuet-stat
ωconst0.0351
0.40
αARCH0.0741
1.71*
βGARCH0.9912
59.96***
γleverage-0.0995
-1.95*

0.991

Persistence

78d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0351
0.40
α

ARCH

Response to squared shocks

0.0741
1.71*
β

GARCH

Volatility persistence

0.9912
59.96***
γ

leverage

Additional response to negative shocks

-0.0995
-1.95*

Persistence:

0.991

Half-life:

78 days