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V-Lab

S&P/TSX Composite Index EGARCH Volatility Analysis

Volatility prediction for Tuesday, August 4th, 2026

1 Day

12.69%

increased by 0.88%

1 Week

12.77%

increased by 0.96%

1 Month

13.05%

increased by 1.24%

Analysis last updated: Friday, July 31, 2026 at 09:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/TSX Composite Index EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 31, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 187% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

-0.0031
-3.04***
α

ARCH

Response to squared shocks

0.1724
43.40***
β

GARCH

Volatility persistence

0.9788
1,176.47***
γ

leverage

Additional response to negative shocks

-0.0833
-27.84***

Persistence:

0.979

Half-life:

32 days