Published on 22 Dec 2022 on Simply Wall St. via Yahoo Finance
It might seem bad, but the worst that can happen when you buy a stock (without leverage) is that its share price goes to zero. But if you buy shares in a really great company, you can more than double your money. For instance the Prothena Corporation plc (NASDAQ:PRTA) share price is 285% higher than it was three years ago. Most would be happy with that. On top of that, the share price is up 11% in about a quarter.
Since the stock has added US$96m to its market cap in the past week alone, let's see if underlying performance has been driving long-term returns.
See our latest analysis for Prothena