V-Lab
S&P / TSX 60 VIX Index CAD GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, August 21st, 2026
1 Day
90.21%
decreased by 7.53%
1 Week
97.95%
increased by 0.21%
1 Month
113.02%
increased by 15.28%
Analysis last updated: Friday, August 21, 2026 at 08:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2017 to Apr 4, 2025Model Insight
Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days. Returns follow a Student-t distribution with v = 3.80 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 64.2136 | 6.98*** |
α ARCH Response to squared shocks | 0.1294 | 13.33*** |
β GARCH Volatility persistence | 0.8998 | 69.67*** |
ν DF Student-t tail thickness | 3.7998 | 6.17*** |
Persistence:
0.900
Half-life:
7 days
Other S&P / TSX 60 VIX Index CAD Analyses
Other GAS-GARCH Student T Analyses on Volatility Indices