Boeing’s stock drops as workers strike and history suggests it could get worse

Shares of Boeing Co. were sinking toward a near two-year low ahead of Friday’s open after the aerospace giant’s machinists union voted to go on strike.

See: Boeing factory workers go on strike after rejecting contract offer

And based on how the stock performed during the last strike, Boeing investors should probably brace for even further declines until another deal is reached.

While Boeing suppliers are also at risk as the strike would impact aircraft deliveries, shares of suppliers were so far trading mixed ahead of the open.