While owning a big stake in Facebook has helped many mutual funds outperform in the past few years, that is not the case at the moment. The social network’s shares are down about 17% since March 16 after reports that Cambridge Analytica siphoned data from tens of millions of Facebook users. The rout is taking a huge toll on some of the biggest mutual funds—to the tune of $2.7 billion. Read the original story from Bloomberg.