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V-Lab

S&P/TSX Composite Index Asy. MEM Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

8.52%

increased by 0.04%

1 Week

8.83%

increased by 0.35%

1 Month

9.85%

increased by 1.37%

Analysis last updated: Friday, August 14, 2026 at 09:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/TSX Composite Index AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Aug 14, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 93% more than equivalent positive returns.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0167
38.79***
α

ARCH

Response to squared shocks

0.1348
39.38***
β

GARCH

Volatility persistence

0.7827
319.87***
γ

leverage

Additional response to negative shocks

0.1251
20.53***

Persistence:

0.980

Half-life:

34 days