During the week of May 18 to May 22, retail investors heavily discussed five notable stocks on platforms like X and Reddit's r/WallStreetBets. Nvidia Corp. (NASDAQ:NVDA) emerged as a leader, reporting first-quarter earnings of $81.6 billion, an impressive 85% increase year-over-year, fueled by soaring demand for AI and data center solutions. The company also announced an $80 billion stock buyback and a 25x dividend increase, with shares trading around $218 to $221. Arm Holdings PLC (NASDAQ:ARM) saw a surge in its stock price, trading between $295 and $299, with a 128.62% increase over the past year, despite ongoing concerns about high valuations and insider selling. Meanwhile, AMC Entertainment Holdings Inc. (NYSE:AMC) expanded its menu and saw CEO Adam Aron purchase 250,000 shares, signaling confidence in future box office revenues. Rocket Lab Corp. (NASDAQ:RKLB) announced a $90 million contract with the U.S. Space Force, propelling its stock price significantly. Lastly, Nebius Group N.V. (NASDAQ:NBIS) maintained volatility post-earnings, with a 465.08% increase in stock value over the year, bolstered by a partnership with Bloom Energy for AI data center power solutions. Overall, retail interest in these stocks reflects a blend of earnings momentum and AI infrastructure developments.