GameStop's stock experienced a significant surge, climbing 29% to mark its biggest gain in over a year. This rally, part of a broader movement in meme stocks, saw GameStop shares increase nearly 40% over the week. The stock's performance was reminiscent of its past volatility, sparking discussions of 'crazy' meme volatility. Other meme stocks also saw notable increases, with KOSS up 22%, BYON up 9%, and AMC up 5%. The surge was attributed to a gamma squeeze on GameStop's Friday lotto options.