Nikkei Stock Average Volatility Index Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Monday, June 29th, 2026
1 Day
156.19%
increased by 19.89%
1 Week
150.64%
increased by 14.34%
1 Month
142.83%
increased by 6.53%
Analysis last updated: Friday, July 3, 2026 at 10:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 2.2859 | 4.68 | |
| 0.1875 | 7.56 | |
| 0.6154 | 16.81 | |
| 0.1544 | 2.80 | |
| -0.1660 | -2.18 | |
| 0.0097 | 0.21 | |
| 0.0167 | 0.41 | |
| -0.0034 | -0.09 | |
| -0.0499 | -1.08 | |
| 0.0695 | 1.10 | |
| -0.0547 | -0.85 | |
| 0.0572 | 1.15 | |
| -0.0562 | -1.62 |
Estimation Period:
Jan 3, 1990 to Jun 26, 2026
Jan 3, 1990 to Jun 26, 2026
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