The Gamestop company logo is seen on display at the New York Stock Exchange during afternoon trading on June 03, 2024 in New York City. GameStop shares jumped over 30% in premarket trading early Friday, ahead of a YouTube livestream scheduled by "Roaring Kitty," the man who inspired 2021′s epic short squeeze. By 6 a.m. ET, shares were up 30.68% in premarket trading, off earlier highs. It follows sharp gains Thursday for the volatile stock after the trader announced the livestream — his first in almost four ...