International Business Machines Corp APARCH Volatility Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Volatility prediction for Tuesday, June 9th, 2026
1 Day
86.92%
decreased by 1.01%
1 Week
87.26%
decreased by 0.67%
1 Month
88.62%
increased by 0.69%
Analysis last updated: Tuesday, June 9, 2026 at 01:37 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 0.9902 | 1.24 | |
| 0.0063 | 0.00 | |
| 0.9599 | 35.91 | |
| -1.0000 | 0.00 | |
| 3.0000 | 2.89 |
Estimation Period:
Dec 19, 2025 to Jun 5, 2026
Dec 19, 2025 to Jun 5, 2026
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