Piper Sandler upgrades Pinterest to buy, says stock could rebound 60%

A banner for the online image board Pinterest Inc. hangs from the New York Stock Exchange on the morning that Pinterest makes its initial public offering on April 18, 2019.
Spencer Platt | Getty Images

Pinterest is set for a big rebound in 2022 as the company puts a scare about user growth in the rearview mirror, according to Piper Sandler.