S&P/TSX Composite Index GARCH Volatility Analysis
Volatility prediction for Thursday, May 21st, 2026
1 Day
13.62%
increased by 0.92%
1 Week
13.67%
increased by 0.97%
1 Month
13.87%
increased by 1.17%
Analysis last updated: Thursday, May 21, 2026 at 12:03 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0109 | 22.81 | |
| 0.1025 | 39.60 | |
| 0.8865 | 340.71 |
Estimation Period:
Jan 1, 1990 to May 15, 2026
Jan 1, 1990 to May 15, 2026
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