Delta Air Lines released its fourth quarter financial report, which showed adjusted revenue of $13.7 billion, a year-on-year increase of 11%; The net profit was 2.04 billion US dollars, more than double the same period last year's 828 million US dollars. Adjusted earnings per share were $1.28, both exceeding market expectations. However, Delta Air Lines has lowered its 2024 earnings forecast from over $7 per share to $6-7 per share. As a result, Delta Air Lines' stock price fell 8.97% to $38.47 last Friday, dragging down the entire aviation sector. Among them, United Airlines fell 10% and American Airlines fell 9%.