Boeing Stock Tumbles on MAX 10 Approval Delay

A recent software glitch in the Boeing 737 MAX has led to a decline in the company's stock price. On Monday, September 28, 2026, Boeing shares fell by approximately 6.9%, while the S&P 500 slipped 0.8%. The drop was attributed to concerns over the delayed approval of the MAX 10, which is the largest version of the 737 MAX.

The glitch, reported by the Wall Street Journal on Saturday, September 26, 2026, involves an automated navigation feature that could fail during landing. Boeing stated that there is no safety issue and that a software fix is being worked on.

The Federal Aviation Administration (FAA) announced that it will not certify the MAX 10 until it is satisfied that there is no issue. This delay has significant implications for Boeing's Commercial Airplanes division, which had revenue of $41.5 billion in fiscal 2025.