https://www.bloomberg.com/news/articles/2018-03-20/facebook-sees-tesla-sized-chunk-vanish-from-market-cap-in-2-days

Facebook Inc.’s privacy crisis has turned into a shareholder crisis.

The social media giant has lost over $60 billion in market value over the past two days, following revelations that personal data of millions of users was obtained by a data analytics firm. That’s more than the market capitalization of Tesla Inc. at around $52 billion or three times that of Snapchat owner Snap Inc. at about $19 billion.