Extreme Value Theory Outperforms GARCH in Predicting Market Risk Levels
The article explores how different models can predict extreme market risk for daily returns on the DowJones index. They compared GARCH models and Extreme Value Theory (EVT) to forecast Value-at-Risk at 95% and 99% confidence levels. GARCH models performed well, especially with skewed-t distribution. EVT techniques outperformed GARCH, with unconditional EVT being the most accurate. Models using fat-tailed distribution passed coverage tests at both confidence levels, showing consistent performance over time.