V-Lab
Sivers Semiconductors Ab GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
145.09%
increased by 17.73%
1 Week
142.42%
increased by 15.06%
1 Month
133.10%
increased by 5.74%
Analysis last updated: Wednesday, August 5, 2026 at 08:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 17, 2014 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 25 trading days, meaning a shock loses half its impact after approximately 25 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6981 | 11.00*** |
α ARCH Response to squared shocks | 0.0866 | 11.67*** |
β GARCH Volatility persistence | 0.8854 | 148.61*** |
γ leverage Additional response to negative shocks | 0.0019 | 0.12 |
Persistence:
0.973
Half-life:
25 days
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