A strange thing happened last week; Facebook (FB) reported earnings and revenues that were far beyond expectations. Any analyst doing their due diligence who predicted that strong performance would surely recommend buying Facebook aggressively. Before Facebook reported their earnings, the stock was trading at over $130 per share. Now it’s trading at $120, having fallen 8% in a day.

On top of that, there are horrifying articles about the huge decline. Several mainstream media outlets published articles detailing how Zuckerberg lost $3 billion in one day.

This is all scary stuff. Who wants to lose $3 billion in a single day?

Of course, these articles are crafted to intimidate, fear, and alarm. That’s how you get pageviews, and that’s how publications get advertising revenue (which, ironically, is how FB makes its money and FB’s performance on this front is far better than any of the publications detailing Zuckerberg’s loss).

The reality is more mundane, and less concerning.

Mark Zuckerberg’s net worth did indeed fall by $3 billion because of the collapse in Facebook shares. but Zuckerberg’s net worth also rose by $10 billion in 2016 before that loss. He went from being worth $56 billion to $53 billion in a day, which is still 15% higher than his worth at the beginning of 2016.

And, yes, Facebook shares fell 8% in a week, but they are still up over 15% from the beginning of 2016. They’re also up 216% since the company’s IPO.

This demonstrates the opposite end of the massive loss coin: massive losses also come with massive gains. This isn’t only true for Facebook, but for other stocks as well.

This volatility is something investors need to take advantage of. It means being greedy when others are fearful. But it also means diversifying across a range of equities to ensure losses are minimal.

The way investors do this is by buying a range of stocks that they have confidence in, so that one will offset the losses of another. Index funds work the same way. Thus the Nasdaq 100 (QQQ), which invests in Facebook as well as other tech stocks, fell only 3% in the last week versus Facebook’s 8%. But QQQ is also up for the year and has risen 87% in the last five years.

A savvy investor should recognize the opportunity this presents. Investing in several stocks can offset the losses of investing in one company. But that doesn’t mean buying an index fund. There are several bad companies in QQQ because it’s part of the index. A good investor will do their homework and identify those stocks that are worth buying and those that are not worth buying. In doing so, the investor can outperform QQQ with less volatility than you’d have just buying FB.