V-Lab
Warsaw Stock Exchange WIG Total Return Index MF2-GARCH Volatility Analysis
Volatility prediction for Monday, October 5th, 2026
1 Day
15.90%
decreased by 0.66%
1 Week
16.16%
decreased by 0.40%
1 Month
16.97%
increased by 0.41%
Analysis last updated: Saturday, October 3, 2026 at 05:50 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 17, 1991 to Oct 2, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 150% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 150% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0570 | 4.67*** |
| βGARCH | 0.8052 | 37.37*** |
| γleverage | 0.0856 | 4.75*** |
| λ₁tau intercept | 0.0093 | 2.51** |
| λ₂forecast adj. | 0.0378 | 4.38*** |
| λ₃tau persistence | 0.9576 | 99.10*** |
0.905
Persistence7d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0570 | 4.67*** |
β GARCH Volatility persistence | 0.8052 | 37.37*** |
γ leverage Additional response to negative shocks | 0.0856 | 4.75*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0093 | 2.51** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0378 | 4.38*** |
λ₃ tau persistence Long-term factor persistence | 0.9576 | 99.10*** |
Persistence:
0.905
Half-life:
7 days
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