Boeing Shares Fall 5% on 737 MAX Software Glitch; Leads Dow Decliners

Boeing (BA) shares fell 5% on Monday, September 28, 2026, leading Dow decliners after The Wall Street Journal reported the company identified a 737 MAX software glitch that could cause an automated navigation feature to fail during landing, raising potential safety concerns. Boeing confirmed the issue, stating it informed all 737 operators last month about a software problem where pilots may lose access to automated flight guidance in a specific landing scenario. The company said engineers are working on a software update to permanently resolve the issue. The Federal Aviation Administration said it is reviewing the matter, will convene a Corrective Action Review Board, and will take immediate action if a safety concern is identified. Industry officials told the Journal that Southwest Airlines (LUV) and United Airlines (UAL) have requested earlier software versions rather than receiving new 737 MAX planes equipped with the flawed update. Boeing shares are down nearly 15% year-to-date.