V-Lab
S&P/TSX Composite Index MEM Volatility Analysis
Volatility prediction for Monday, August 10th, 2026
1 Day
10.46%
decreased by 1.02%
1 Week
10.70%
decreased by 0.78%
1 Month
11.51%
increased by 0.03%
Analysis last updated: Friday, August 7, 2026 at 09:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Aug 7, 2026Model Insight
Volatility shocks decay with a half-life of 46 trading days, meaning a shock loses half its impact after approximately 46 days.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0166 | 11.50*** |
α ARCH Response to squared shocks | 0.2302 | 57.46*** |
β GARCH Volatility persistence | 0.7548 | 263.82*** |
Persistence:
0.985
Half-life:
46 days
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