POSCO Holdings Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Friday, February 20th, 2026:42.88% (+1.42%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| 0.8052 | 7.29 | |
| 0.0823 | 9.02 | |
| 0.8589 | 54.45 | |
| -0.0009 | -0.03 | |
| 0.0473 | 0.93 | |
| -0.1587 | -4.03 | |
| 0.2141 | 5.89 | |
| -0.1881 | -5.39 | |
| 0.1707 | 5.14 | |
| -0.1285 | -3.73 | |
| 0.0676 | 2.08 | |
| -0.0379 | -1.61 |
Estimation Period:
Jan 3, 1990 to Feb 13, 2026
Jan 3, 1990 to Feb 13, 2026
News Impact Curve
Volatility Forecasts
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