https://www.cnbc.com/2018/07/26/hedge-funds-lose-nearly-6-billion-as-facebook-shares-crater.html

Facebook was the most-loved holding of hedge funds before the stock's epic plunge on Thursday, resulting in a massive multibillion-dollar loss for the so-called smart money on Wall Street.

Of 848 hedge funds tracked by Goldman Sachs, 97 had Facebook as a top 10 holding, according to the firm's May "Hedge Fund Trend Monitor" report. The note, tracking $1.6 trillion in hedge fund long positions, used the latest available filings for the first quarter.