BT's (BT.A) chief executive, Gavin Patterson, is not the only FTSE 100 boss to have announced a profit warning since the start of 2017. Several high profile companies have been forced to restate guidance since the start of the year. So is this a side effect of the current macroeconomic instability or do investors need to be wary of company structural issues which pre-date Brexit-related turmoil? And do these profit warnings present buying opportunities or should investors jump ship from companies in turmoil?In this podcast Alan Hudson, partner at EY, and the IC's companies editor, Ian Smith, join Megan Boxall to discuss why so many companies have had such a rough start to 2017.Introduction audio is the copyright of Reuters and BT. Hosted on Acast. See acast.com/privacy for more information.