AT&T Inc AGARCH Volatility Analysis
Volatility Prediction for Wednesday, November 19th, 2025:20.08% (-0.63%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.0350 | 19.61 | |
| 0.0677 | 42.86 | |
| 0.9177 | 565.11 | |
| 0.2190 | 6.62 |
Estimation Period:
Jan 2, 1990 to Nov 14, 2025
Jan 2, 1990 to Nov 14, 2025
News Impact Curve
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