ADTRAN Holdings Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Friday, February 13th, 2026:58.39% (+2.52%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.9673 | 10.32 | |
| 0.0960 | 4.98 | |
| 0.6484 | 9.32 | |
| -0.0562 | -2.16 | |
| 0.0513 | 1.20 | |
| 0.0004 | 0.01 | |
| 0.0365 | 1.10 | |
| -0.0814 | -2.51 | |
| 0.1333 | 4.25 | |
| -0.1296 | -3.38 | |
| 0.0432 | 1.24 |
Estimation Period:
Aug 10, 1994 to Feb 6, 2026
Aug 10, 1994 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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