American Express Co GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, June 15th, 2026
1 Day
27.75%
increased by 1.58%
1 Week
27.84%
increased by 1.67%
1 Month
28.20%
increased by 2.03%
Analysis last updated: Friday, June 12, 2026 at 11:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 4.9893 | 4.87 | |
| 0.0686 | 55.77 | |
| 0.9946 | 885.66 | |
| 5.5427 | 14.54 |
Estimation Period:
Jan 2, 1990 to Jun 12, 2026
Jan 2, 1990 to Jun 12, 2026
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