Dow Jones South Africa Index MF2-GARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Friday, March 27th, 2026
1 Day
21.97%
decreased by 43.86%
1 Week
163,495,763.61%
increased by 163,495,697.78%
1 Month
6,113,053,901,283,712,000,000,000,000,000,000,000.00%
increased by 6,113,053,901,283,712,000,000,000,000,000,000,000.00%
Analysis last updated: Friday, March 27, 2026 at 07:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 26 | ||
| 1.0000 | 9,999,900.00 | |
| 0.0008 | 8,410.00 | |
| -0.0017 | -16,620.00 | |
| 0.9794 | 42.07 | |
| 0.1256 | 45.53 | |
| 0.0009 | 0.04 |
Estimation Period:
Jan 1, 1992 to Dec 25, 2025
Jan 1, 1992 to Dec 25, 2025
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