Why Chewy's stock is a must-buy.This year has been a rollercoaster ride for Chewy (CHWY -1.84%). The stock started the year on a downward trajectory after management said that pet industry spending for 2024 would be lower than historical levels. The stock then got a lift in late May when it reported solid first-quarter sales results. Later in the summer, the stock shot higher when Keith Gill, aka Roaring Kitty on the Wallstreetbets message boards of Reddit, posted a photo of a cartoon dog on his X (formerly ...