I think Boeing is keeping quiet because they know these planes will never fly again and they have no idea what to do. While I doubt it will break the company, simply because if the worst is true, the government will step in simply because of just how important Boeing is, but it will cost a metric fuck ton when you add together compensations and possible buy backs of airplanes from airlines, loss of orders for future craft, downtime on the production line, loss of revenue from sales (the 737 is Boeing's cash cow), time taken to design, test and get approval for a new plane, etc... If I were into stocks I'd be shorting Boeing stocks hard, right up until a bailout looked likely.