V-Lab
Ecuador Guayaquil Stock Exchange BVG MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 18th, 2026
1 Day
15.83%
decreased by 1.51%
1 Week
15.12%
decreased by 2.22%
1 Month
13.63%
decreased by 3.71%
Analysis last updated: Friday, September 18, 2026 at 10:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1994 to Sep 10, 2026Model Insight
Volatility shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 6-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 46 | |
| αARCH | 0.0821 | 3.91*** |
| βGARCH | 0.7717 | 20.14*** |
| γleverage | 0.0590 | 1.64 |
| λ₁tau intercept | 0.0004 | 1.05 |
| λ₂forecast adj. | 0.0038 | 2.65*** |
| λ₃tau persistence | 0.9955 | 541.93*** |
0.883
Persistence6d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 46 | |
α ARCH Response to squared shocks | 0.0821 | 3.91*** |
β GARCH Volatility persistence | 0.7717 | 20.14*** |
γ leverage Additional response to negative shocks | 0.0590 | 1.64 |
λ₁ tau intercept Baseline long-term coefficient | 0.0004 | 1.05 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0038 | 2.65*** |
λ₃ tau persistence Long-term factor persistence | 0.9955 | 541.93*** |
Persistence:
0.883
Half-life:
6 days
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