V-Lab
S&P/TSX Composite Index MF2-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
9.94%
decreased by 0.22%
1 Week
10.34%
increased by 0.18%
1 Month
11.38%
increased by 1.22%
Analysis last updated: Friday, August 21, 2026 at 09:11 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Aug 21, 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
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 41 | |
α ARCH Response to squared shocks | 0.0147 | 4.88*** |
β GARCH Volatility persistence | 0.8244 | 215.14*** |
γ leverage Additional response to negative shocks | 0.1685 | 38.24*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0039 | 6.50*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0483 | 8.45*** |
λ₃ tau persistence Long-term factor persistence | 0.9467 | 145.89*** |
Persistence:
0.923
Half-life:
9 days
Other MF2-GARCH Analyses on Equity Indices