Stock Exchange of Thailand SET 50 Index GJR-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, May 22nd, 2026
1 Day
14.42%
decreased by 0.55%
1 Week
14.88%
decreased by 0.09%
1 Month
16.57%
increased by 1.60%
Analysis last updated: Saturday, May 23, 2026 at 01:51 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0264 | 14.62 | |
| 0.0604 | 12.74 | |
| 0.8977 | 227.22 | |
| 0.0837 | 5.95 |
Estimation Period:
Aug 16, 1995 to Apr 30, 2026
Aug 16, 1995 to Apr 30, 2026
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