OMX Stockholm 30 Index GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, November 16th, 2026
1 Day
14.22%
decreased by 0.70%
1 Week
14.43%
decreased by 0.49%
1 Month
15.20%
increased by 0.28%
Analysis last updated: Friday, November 13, 2026 at 05:13 PM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Nov 13, 2026Model Insight
Volatility shocks decay with a half-life of 63 trading days, meaning a shock loses half its impact after approximately 63 days. Returns follow a Student-t distribution with ν = 9.81 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
Shock decay: Shocks decay with a 63-day half-lifeν = 9.81 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωlong-run | 1.9151 | 2.20** |
| αscore | 0.0810 | 8.85*** |
| βpersistence | 0.9890 | 187.67*** |
| νDF | 9.8117 | 1.18 |
0.989
Persistence63d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω long-run Long-run variance given a price move | 1.9151 | 2.20** |
α score Weight on the scaled score | 0.0810 | 8.85*** |
β persistence Volatility persistence | 0.9890 | 187.67*** |
ν DF Student-t tail thickness | 9.8117 | 1.18 |
Persistence:
0.989
Half-life:
63 days
Other OMX Stockholm 30 Index Analyses
Other GAS-GARCH Student T Analyses on Equity Indices