UPDATE 3-Robinhood results beat estimates on meme-stock, crypto-trading boom Adds executive comment from conference call; details and industry context throughout, graphic on revenue growth; updates shares By Manya Saini Aug 7 (Reuters) - Robinhood HOOD.O beat Wall Street expectations for second-quarter earnings on Wednesday, as interest in meme stocks and cryptocurrencies soared, and said it continued to gain retail trading market share from rivals.

BUZZ-PREVIEW: Robinhood flat ahead of report; analysts eye meme-stock bump ** Shares of Robinhood Markets Inc HOOD.O trading near flat ahead of the stock trading platform's qtrly report after the bell on Wednesday, as investors expect strong rev growth as retail investors trade 'meme stocks' and cryptocurrencies ** Increased trading volumes in Game

PREVIEW-Robinhood's second quarter to benefit from meme stock revival, crypto trading By Manya Saini Aug 6 (Reuters) - Wall Street expects Robinhood's HOOD.O 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 GME.N , luring mom-and-pop investors back to Robinh

UPDATE 5-Citron's Andrew Left faces US criminal charges over alleged fraud Updates with legal expert reaction in paragraphs 16-17 By Chris Prentice July 26 (Reuters) - U .S. authorities charged prominent activist short seller Andrew Left and his fund Citron Capital, alleging he had for years manipulated the market and defrauded investors with misleading claims about his positions in multiple stocks, including Nvidia NVDA.O and Tesla TSLA.O .

Meme stock speculation propels Koss shares 25% higher on Friday By Suzanne McGee July 5 (Reuters) - Shares of headphone maker Koss Corp. KOSS.O soared for the second session in a row on Friday, closing at $13.35 a share, after trading as high as $18.50 early in the day, as social media posts speculated that a post by meme stock influencer Keith Gill indicated his interest in the company.