V-Lab
OMX Stockholm 30 Index GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
10.95%
decreased by 0.14%
1 Week
11.46%
increased by 0.37%
1 Month
13.15%
increased by 2.06%
Analysis last updated: Friday, August 14, 2026 at 04:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 14, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0300 | 21.87*** |
α ARCH Response to squared shocks | 0.0233 | 9.89*** |
β GARCH Volatility persistence | 0.9008 | 485.09*** |
γ leverage Additional response to negative shocks | 0.1222 | 23.52*** |
Persistence:
0.985
Half-life:
47 days
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