V-Lab
S&P/TSX 60 Index MF2-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
11.19%
decreased by 0.17%
1 Week
11.37%
increased by 0.01%
1 Month
11.79%
increased by 0.43%
Analysis last updated: Saturday, September 5, 2026 at 08:55 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 36 | |
| αARCH | 0.0107 | 1.15 |
| βGARCH | 0.8398 | 65.94*** |
| γleverage | 0.1563 | 10.15*** |
| λ₁tau intercept | 0.0035 | 2.16** |
| λ₂forecast adj. | 0.0407 | 4.30*** |
| λ₃tau persistence | 0.9552 | 90.44*** |
0.929
Persistence9d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 36 | |
α ARCH Response to squared shocks | 0.0107 | 1.15 |
β GARCH Volatility persistence | 0.8398 | 65.94*** |
γ leverage Additional response to negative shocks | 0.1563 | 10.15*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0035 | 2.16** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0407 | 4.30*** |
λ₃ tau persistence Long-term factor persistence | 0.9552 | 90.44*** |
Persistence:
0.929
Half-life:
9 days
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