But a grim forecast from JPMorgan Chase CEO Jamie Dimon gave rise to fresh recession fears, causing shares of Delta, American Airlines Group (NASDAQ: AAL), United Airlines Holdings (NASDAQ: UAL), and JetBlue Airways (NASDAQ: JBLU) to all trade down 5% or more. Delta got the trading day off to a positive start, releasing updated guidance that called for stronger revenue and operating margins than initially expected. The rally turned south along with the broader market after Dimon, speaking at an investor conference, said the U.S. economy faces a "hurricane" as the Federal Reserve attempts to battle rising inflation.