Budapest Stock Exchange Budapest Stock Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
24.72%
decreased by 1.84%
1 Week
24.79%
decreased by 1.77%
1 Month
25.02%
decreased by 1.54%
Analysis last updated: Friday, October 16, 2026 at 05:56 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 1, 1991 to Oct 9, 2026Model Insight
Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.
σ
GJR-GARCH Model
Tap to view equation
Shock decay: Shocks decay with a 24-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0768 | 5.35*** |
| αARCH | 0.1082 | 6.52*** |
| βGARCH | 0.8210 | 42.37*** |
| γleverage | 0.0843 | 1.83* |
0.971
Persistence24d
Half-lifeσ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0768 | 5.35*** |
α ARCH Response to squared shocks | 0.1082 | 6.52*** |
β GARCH Volatility persistence | 0.8210 | 42.37*** |
γ leverage Additional response to negative shocks | 0.0843 | 1.83* |
Persistence:
0.971
Half-life:
24 days
Other Budapest Stock Exchange Budapest Stock Index Analyses
Other GJR-GARCH Analyses on Equity Indices