JSE Securities South African Volatility Index Spline-GARCH Volatility Analysis
Volatility prediction for Friday, April 17th, 2026
1 Day
70.54%
decreased by 6.64%
1 Week
67.37%
decreased by 9.81%
1 Month
62.05%
decreased by 15.13%
Analysis last updated: Friday, April 17, 2026 at 08:26 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.6624 | 5.00 | |
| 0.1212 | 4.40 | |
| 0.7147 | 12.49 | |
| -0.1495 | -1.99 | |
| 0.2837 | 2.47 | |
| -0.2872 | -2.75 | |
| 0.3400 | 3.13 | |
| -0.3729 | -3.81 | |
| 0.3344 | 3.07 |
Estimation Period:
Feb 1, 2007 to Apr 4, 2025
Feb 1, 2007 to Apr 4, 2025
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