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V-Lab

Samhallsbygg I Nor GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

53.89%

decreased by 1.34%

1 Week

57.36%

increased by 2.13%

1 Month

68.04%

increased by 12.81%

Analysis last updated: Friday, September 4, 2026 at 06:42 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Samhallsbygg I Nor GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 3, 2023 to Aug 28, 2026

Model Insight

Volatility shocks decay with a half-life of 32 trading days, meaning a shock loses half its impact after approximately 32 days. Returns follow a Student-t distribution with v = 2.82 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

47.7649
0.71
α

ARCH

Response to squared shocks

0.0790
6.37***
β

GARCH

Volatility persistence

0.9784
38.70***
ν

DF

Student-t tail thickness

2.8243
3.92***

Persistence:

0.978

Half-life:

32 days