Meme stock trader Keith Gill, aka "Roaring Kitty," failed to rally investors around GameStop with his first livestream in three years on Friday as the stock slumped 40%. GameStop shares plummeted after the video game retailer unveiled a share sale to raise up to $3 billion. Gill, meanwhile, told nearly 600,000 viewers on his YouTube livestream to bet on CEO Ryan Cohen "and his crew" while joking about memes and issuing disclaimers that retail traders could "lose it all." Gill said his "aggressive style of i ...