Dow ends lower, Nvidia gains on buyback; MongoDB dives on CEO exit

The Dow fell 347 points (-0.7%) as Boeing dropped 6.9% on a 737 Max software glitch. Nvidia rose 1.7% after authorizing an additional $150 billion in buybacks. MongoDB plunged 17% after CEO CJ Desai resigned to join Meta. The S&P 500 slid 0.8%, Nasdaq lost 0.9%. The 10-year yield hit 5.23%, pressuring gold and growth stocks. WTI crude settled at $92.95 after Saudi Arabia resumed East-West pipeline exports.