After U.S. retail investor "leader" Keith Gill (aka "Roaring Kitten") posted a photo of his dog on social media platform "X," his followers flocked to pet product companies Chewy and Petco. Shares of Chewy, founded by Ryan Cohen, the former chief executive of GameStop and an investor in Bed Bath & Beyond, are now up nearly 3 percent to near $30, with a peak price of $39.10, after rising as much as 25 percent and experiencing a halt. Petco's shares spiked to $3.74 at one point.