https://www.cnbc.com/2018/07/26/wall-street-is-stunned-over-facebooks-coming-profitability-plunge-do.html

Wall Street is surprised over Facebook's lower profit margin guidance, driving at least three Wall Street firms to lower their ratings on the social media giant's shares and slash their price targets.

The company on Wednesday reported slightly lower-than-expected second-quarter sales and daily active user numbers. But the bigger disappointment was its guidance for slower sales growth for the third and fourth quarters and a dramatically reduced forecast for long-term profit margins.