V-Lab
Sivers Semiconductors Ab MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
137.11%
decreased by 3.97%
1 Week
138.59%
decreased by 2.49%
1 Month
143.67%
increased by 2.59%
Analysis last updated: Friday, September 11, 2026 at 09:19 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 17, 2014 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 8-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 81 | |
| αARCH | 0.1019 | 3.02*** |
| βGARCH | 0.8398 | 15.99*** |
| γleverage | -0.0422 | -0.97 |
| λ₁tau intercept | 0.4216 | 1.08 |
| λ₂forecast adj. | 0.0892 | 1.01 |
| λ₃tau persistence | 0.9009 | 10.29*** |
0.921
Persistence8d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 81 | |
α ARCH Response to squared shocks | 0.1019 | 3.02*** |
β GARCH Volatility persistence | 0.8398 | 15.99*** |
γ leverage Additional response to negative shocks | -0.0422 | -0.97 |
λ₁ tau intercept Baseline long-term coefficient | 0.4216 | 1.08 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0892 | 1.01 |
λ₃ tau persistence Long-term factor persistence | 0.9009 | 10.29*** |
Persistence:
0.921
Half-life:
8 days
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