Sivers Semiconductors Ab GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, October 29th, 2026
1 Day
84.94%
decreased by 3.81%
1 Week
84.79%
decreased by 3.96%
1 Month
84.24%
decreased by 4.51%
Analysis last updated: Friday, October 30, 2026 at 12:09 AM 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 23, 2026Model Insight
Volatility shocks decay with a half-life of 28 trading days, meaning a shock loses half its impact after approximately 28 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 28-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6496 | 2.87*** |
| αARCH | 0.0815 | 3.03*** |
| βGARCH | 0.8924 | 41.22*** |
| γleverage | 0.0031 | 0.05 |
0.975
Persistence28d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6496 | 2.87*** |
α ARCH Response to squared shocks | 0.0815 | 3.03*** |
β GARCH Volatility persistence | 0.8924 | 41.22*** |
γ leverage Additional response to negative shocks | 0.0031 | 0.05 |
Persistence:
0.975
Half-life:
28 days
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