Fears about the future of Boeing's 737 Max airliner following a second fatal crash have wiped more than $25 billion off the company's market value.
Boeing shares fell 11 per cent in early trading in New York to $376 - their biggest fall in almost two decades - valuing the aerospace and defence giant at $217 billion as investors reacted to the loss of an Ethiopian Airlines 737 Max 8 soon after takeoff from Addis Ababa on Sunday.
All 157 people on the plane died in the crash, which came just six months after an identical aircraft flown by Lion Air went down off Indonesia in similar circumstances, killing 189 people.
Several airlines have grounded the jets following Sunday's crash.
Aviation regulators in China and Indonesia have suspended flights using that model.
Ethiopian Airlines and Cayman Airways, have also grounded their 737 Max 8 aircraft.