Skip to main content
V-Lab
V-Lab

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

Volatility prediction for Tuesday, September 15th, 2026

1 Day

12.93%

decreased by 0.54%

1 Week

13.00%

decreased by 0.47%

1 Month

13.25%

decreased by 0.22%

Analysis last updated: Tuesday, September 15, 2026 at 09:02 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 Sep 11, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 373% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 373% more than positive returns
ParamValuet-stat
ωconst0.0137
5.85***
αARCH0.0293
3.33***
βGARCH0.9008
113.07***
γleverage0.1093
5.63***

0.985

Persistence

45d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0137
5.85***
α

ARCH

Response to squared shocks

0.0293
3.33***
β

GARCH

Volatility persistence

0.9008
113.07***
γ

leverage

Additional response to negative shocks

0.1093
5.63***

Persistence:

0.985

Half-life:

45 days