Should Boeing Stock Investors Worry About Its Money-Losing Jet Business?

If you own Boeing (BA), the worry is whether its commercial airplane business can earn money on the jets it sells. In the second quarter of fiscal 2026, that business lost money. Its operating margin was negative 2.7%, meaning costs ran above sales. The jet business brought in nearly half of Boeing's revenue for the quarter. That makes its margin the number that matters most for Boeing's profits.