V-Lab
Ishares Core Sp500 IDX (Cad) GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
10.85%
decreased by 0.24%
1 Week
11.18%
increased by 0.09%
1 Month
12.26%
increased by 1.17%
Analysis last updated: Saturday, August 15, 2026 at 09:24 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 29, 2001 to Aug 14, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0250 | 16.15*** |
α ARCH Response to squared shocks | 0.0013 | 0.27 |
β GARCH Volatility persistence | 0.8886 | 292.40*** |
γ leverage Additional response to negative shocks | 0.1763 | 23.61*** |
Persistence:
0.978
Half-life:
31 days
Other Ishares Core Sp500 IDX (Cad) Analyses
Other GJR-GARCH Analyses on ETFs