The "Cryptocurrency Carnival" is not just attended by retail investors! Goldman Sachs: Hedge funds have also returned. According to reports, not only YOLO gamblers have flocked to the digital currency market, but also Goldman Sachs Group's hedge fund clients. YOLO stands for "you only live once" and is an investment philosophy of the new generation of retail investors in the United States, similar to the spirit of a gambler. On some Reddit forums, retail investors use this term when making high-risk bets in the stock market, such as working together to hype up stock prices.