Korea Stock Exchange KOSPI Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, May 22nd, 2026
1 Day
57.07%
increased by 14.13%
1 Week
55.28%
increased by 12.34%
1 Month
49.24%
increased by 6.30%
Analysis last updated: Thursday, May 21, 2026 at 09:14 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.1419 | 6.20 | |
| 0.1002 | 9.95 | |
| 0.8615 | 67.41 | |
| 0.0109 | 0.36 | |
| 0.0451 | 1.01 | |
| -0.1636 | -5.36 | |
| 0.1879 | 6.57 | |
| -0.1376 | -5.26 | |
| 0.1083 | 3.94 | |
| -0.0528 | -1.88 | |
| -0.0117 | -0.54 |
Estimation Period:
Jan 2, 1990 to May 15, 2026
Jan 2, 1990 to May 15, 2026
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