Facebook, Diageo, AB InBev: Everything that matters this morning

Facebook shares tumble 20% as user growth slows
Facebook shares fell by more than 20% yesterday after the social media giant announced its slowest growth in users for over two years.
Wrestling with the aftermath of the Cambridge Analytica data harvesting scandal, Facebook saw its monthly active users grow to 2.23 billion, which despite being a rise of 11% on June 2017 is its slowest growth for more than two years.
Facebook expects its revenue growth to slow as users make the most of new options