JSE Securities South African Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, May 8th, 2026
1 Day
86.03%
decreased by 6.61%
1 Week
83.16%
decreased by 9.48%
1 Month
75.03%
decreased by 17.61%
Analysis last updated: Saturday, May 9, 2026 at 03:07 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.8976 | 14.13 | |
| 0.1206 | 11.67 | |
| 0.8360 | 99.96 | |
| -0.0442 | -2.46 |
Estimation Period:
Feb 1, 2007 to Apr 4, 2025
Feb 1, 2007 to Apr 4, 2025
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