V-Lab
Sivers Semiconductors Ab GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, October 7th, 2026
1 Day
80.80%
decreased by 2.91%
1 Week
80.83%
decreased by 2.88%
1 Month
80.92%
decreased by 2.79%
Analysis last updated: Wednesday, October 7, 2026 at 08:45 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 17, 2014 to Oct 2, 2026Model Insight
Volatility shocks decay with a half-life of 27 trading days, meaning a shock loses half its impact after approximately 27 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 27-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6629 | 2.84*** |
| αARCH | 0.0829 | 2.99*** |
| βGARCH | 0.8905 | 40.02*** |
| γleverage | 0.0028 | 0.05 |
0.975
Persistence27d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6629 | 2.84*** |
α ARCH Response to squared shocks | 0.0829 | 2.99*** |
β GARCH Volatility persistence | 0.8905 | 40.02*** |
γ leverage Additional response to negative shocks | 0.0028 | 0.05 |
Persistence:
0.975
Half-life:
27 days
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