> The social-media behemoth’s stock lost roughly one-fifth of its value. That's one way to describe it. Another way is, Facebook's stock fell to where it was t

> The social-media behemoth’s stock lost roughly one-fifth of its value. That's one way to describe it. Another way is, Facebook's stock fell to where it was two months ago, which is 70% over what it was at the start of 2017. I'm not saying that a large one-day drop is insignificant or isn't news. But to paint this as the bottom falling out is unwarranted.