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V-Lab
V-Lab

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

Volatility prediction for Friday, September 4th, 2026

1 Day

79.42%

decreased by 1.96%

1 Week

89.90%

increased by 8.52%

1 Month

114.84%

increased by 33.46%

Analysis last updated: Friday, September 4, 2026 at 11:28 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

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

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2017 to Aug 27, 2026

Model Insight

Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 13-day half-life
ParamValuet-stat
ωconst5.0000
3.96***
αARCH0.1203
2.29**
βGARCH0.7450
18.72***
γleverage0.1659
1.28

0.948

Persistence

13d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
3.96***
α

ARCH

Response to squared shocks

0.1203
2.29**
β

GARCH

Volatility persistence

0.7450
18.72***
γ

leverage

Additional response to negative shocks

0.1659
1.28

Persistence:

0.948

Half-life:

13 days