Home » BBC News - Technology » technology news » Facebook shares slump 20% after growth warning Facebook shares slump 20% after growth warning Unknown 8:41 AM BBC News - Technology technology news A warning that profits growth will slow sends Facebook shares sliding 20% at the start of Wall Street trading. from BBC News - Technology https://ift.tt/2uPFTuI Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati