V-Lab
Sivers Semiconductors Ab GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
112.55%
increased by 11.18%
1 Week
111.06%
increased by 9.69%
1 Month
105.92%
increased by 4.55%
Analysis last updated: Tuesday, August 25, 2026 at 08:16 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 17, 2014 to Aug 21, 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 | 0.7043 | 11.12*** |
α ARCH Response to squared shocks | 0.0862 | 11.60*** |
β GARCH Volatility persistence | 0.8852 | 148.15*** |
γ leverage Additional response to negative shocks | 0.0022 | 0.13 |
Persistence:
0.972
Half-life:
25 days
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