Facebook's stock is tanking more than 20% after executives warn that revenue growth rates are coming

Facebook announced its Q2 2018 financial results on Wednesday — and in a rare miss, it failed to hit Wall Street's expectations. During the conference call, Facebook executives warned that revenue growth rates will decline by "high single digit" percentages in the coming quarters. Facebook's stock plunged more than 20% after the comments, wiping nearly $150 billion in market value. Facebook's daily- and monthly- active user figures were all below analysts' predictions. The disappointing...