V-Lab
OMX Stockholm 30 Index GARCH Volatility Analysis
Volatility prediction for Tuesday, September 22nd, 2026
1 Day
15.30%
increased by 0.75%
1 Week
15.51%
increased by 0.96%
1 Month
16.27%
increased by 1.72%
Analysis last updated: Monday, September 21, 2026 at 04:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 54 trading days, meaning a shock loses half its impact after approximately 54 days.
σ
GARCH Model
Tap to view equation
Shock decay: Shocks decay with a 54-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0249 | 5.35*** |
| αARCH | 0.0887 | 11.10*** |
| βGARCH | 0.8986 | 108.41*** |
0.987
Persistence54d
Half-lifeσ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0249 | 5.35*** |
α ARCH Response to squared shocks | 0.0887 | 11.10*** |
β GARCH Volatility persistence | 0.8986 | 108.41*** |
Persistence:
0.987
Half-life:
54 days
Other OMX Stockholm 30 Index Analyses
Other GARCH Analyses on Equity Indices