Facebook facing biggest one-day rout ever as shares tumble 18% – business live
https://www.theguardian.com/business/live/2018/jul/26/trade-war-truce-us-eu-trump-juncker-ecb-mario-draghi-business-live
Investors desert Facebook after it missed revenue targets as the cost of the Cambridge Analytica scandal bites
This chart from Bloomberg shows how Facebook is facing the biggest loss of market value in cash terms ever: