Nikkei Stock Average Volatility Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, May 8th, 2026
1 Day
166.14%
increased by 27.92%
1 Week
154.42%
increased by 16.20%
1 Month
137.58%
decreased by 0.64%
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 | |
|---|---|---|
| 2.2808 | 4.63 | |
| 0.1917 | 7.48 | |
| 0.6043 | 16.12 | |
| 0.1562 | 2.77 | |
| -0.1681 | -2.16 | |
| 0.0097 | 0.20 | |
| 0.0165 | 0.40 | |
| -0.0012 | -0.03 | |
| -0.0519 | -1.09 | |
| 0.0662 | 1.02 | |
| -0.0439 | -0.67 | |
| 0.0393 | 0.78 | |
| -0.0395 | -1.11 |
Estimation Period:
Jan 3, 1990 to Mar 13, 2026
Jan 3, 1990 to Mar 13, 2026
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