V-Lab
S&P/TSX 60 Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, August 7th, 2026
1 Day
11.44%
decreased by 0.45%
1 Week
11.57%
decreased by 0.32%
1 Month
12.01%
increased by 0.12%
Analysis last updated: Friday, August 7, 2026 at 08:55 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 31, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 369% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0137 | 23.38*** |
α ARCH Response to squared shocks | 0.0294 | 13.34*** |
β GARCH Volatility persistence | 0.9010 | 452.09*** |
γ leverage Additional response to negative shocks | 0.1087 | 22.40*** |
Persistence:
0.985
Half-life:
45 days
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