Costain Group PLC Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Monday, February 9th, 2026:31.47% (-1.10%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.5692 | 7.97 | |
| 0.1458 | 5.83 | |
| 0.6698 | 14.18 | |
| -0.1927 | -4.93 | |
| 0.2740 | 4.23 | |
| -0.1686 | -3.39 | |
| 0.1903 | 4.72 | |
| -0.1685 | -4.17 | |
| 0.0475 | 1.05 | |
| 0.1245 | 3.35 | |
| -0.2084 | -4.54 | |
| 0.1346 | 3.29 |
Estimation Period:
Jan 1, 1990 to Feb 6, 2026
Jan 1, 1990 to Feb 6, 2026
News Impact Curve
Volatility Forecasts
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