S&P 500 Index AGARCH Volatility Analysis
Volatility Prediction for Tuesday, February 17th, 2026:16.14% (-0.93%)
Parameter Estimates
| param | t-stat | |
|---|---|---|
| -0.0055 | -1.44 | |
| 0.1026 | 28.22 | |
| 0.8684 | 228.69 | |
| 0.6336 | 16.64 |
Estimation Period:
Jan 1, 1990 to Feb 13, 2026
Jan 1, 1990 to Feb 13, 2026
News Impact Curve
Volatility Forecasts
Other AGARCH Analyses on Equity Indices