https://techcrunch.com/2018/07/25/fallbook/

Facebook’s share price fell over 20 percent in after-hours trading today after the company announced its slowest-ever user growth rate and a scary warning that its revenue growth would rapidly decelerate. Before today’s brutal Q2 earnings, Facebook’s share price closed today at $217.50 – a record high — but fell to around $172 after the earnings call. That’s a market cap drop of roughly $123 billion. In two hours, Facebook lost more value than most startups and even public companies are ever worth.

Here’s the full story on Facebook’s disastrous Q2 2018 earnings: