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V-Lab

S&P/TSX 60 Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 17th, 2026

1 Day

8.74%

decreased by 0.25%

1 Week

8.99%

unchanged at 0.00%

1 Month

9.85%

increased by 0.86%

Analysis last updated: Friday, July 17, 2026 at 11:40 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/TSX 60 Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 10, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 370% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0137
23.36***
α

ARCH

Response to squared shocks

0.0294
13.33***
β

GARCH

Volatility persistence

0.9010
452.10***
γ

leverage

Additional response to negative shocks

0.1087
22.39***

Persistence:

0.985

Half-life:

45 days