Halma PLC Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Wednesday, February 11th, 2026:20.90% (-0.91%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.9008 | 5.54 | |
| 0.1382 | 6.54 | |
| 0.6792 | 14.49 | |
| -0.0623 | -1.49 | |
| 0.1814 | 2.90 | |
| -0.2244 | -4.26 | |
| 0.1340 | 2.47 | |
| -0.0029 | -0.07 | |
| -0.0849 | -2.78 | |
| 0.0876 | 3.13 | |
| 0.0099 | 0.34 | |
| -0.0806 | -2.54 | |
| 0.0540 | 2.11 |
Estimation Period:
Jan 2, 1990 to Feb 6, 2026
Jan 2, 1990 to Feb 6, 2026
News Impact Curve
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