Maybe you also followed this story. Or maybe not. But basically a really big hedge fund manager, one of those guys who people quote and probably talk about at Harvard Business School, placed a super big bet on this company called Valeant.
Valeant is a pharmaceutical company trying to cure problems with skin and infectious diseases. They actually also own Bausch Lomb so that means they have a giant eye care business.
This hedge fund manager made a bet that Valeant would keep growing their business, diversifying, and acquiring. He once even called them the next “Berkshire Hathaway.”
This thesis turned out to be wrong. Like really wrong. The company crashed. People started to call Valeant out for jacking up the prices of their drugs. They also were apparently doing some dicey bookkeeping things. Just Google “Philidor Valeant scandal” if you want to learn more about that.