The GameStop Bubble Is a Lesson in the Absurdity and Uselessness of the Stock Market

Who knew GameStop would itself become such a game?

Last summer, the video game retailer was seen as a fading brick-and-mortar operation. It was losing money, sales had been shrinking for years, and the stock was trading for around $4 a share. As I’m writing this on the afternoon of Wednesday, January 27, its stock is trading at $339 a share. At the close of trading on Tuesday, it was a mere $148. Not a bad overnight return, 129 percent. Three days earlier, it was at $38. It was up...