V-Lab
Samhallsbygg I Nor GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
61.46%
decreased by 0.71%
1 Week
63.58%
increased by 1.41%
1 Month
70.48%
increased by 8.31%
Analysis last updated: Saturday, August 22, 2026 at 08:33 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 3, 2023 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 33 trading days, meaning a shock loses half its impact after approximately 33 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8482 | 2.94*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9221 | 111.11*** |
γ leverage Additional response to negative shocks | 0.1142 | 7.21*** |
Persistence:
0.979
Half-life:
33 days
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