Wall Street expects Robinhood's revenue to hit record highs in the second quarter as retail investors flock to its commission-free app to trade so-called 'meme stocks' and cryptocurrencies. The return of influencer Keith Gill, known online as "Roaring Kitty", rekindled investor appetite for retail favorites like GameStop, luring mom-and-pop investors back to Robinhood. Its equity trading volumes surged 82% in April and 76% in May compared with a year ago.