According to the WSJ, clients have been withdrawing more money than expected from the hedge fund; Pine River was best known for its profits after rebounding government-backed mortgages following the financial crisis; Pine River manages roughly half of the $15 billion it managed in 2015. Source
Until now little has been known about the hedge fund that invests in cryptocurrencies; it is backed by big names including Andreessen Horowitz, Sequoia Capital, Union Square Ventures, Founders Fund and Bessemer Venture Partners; the firm owns about a dozen cryptocurrencies, taking a value investing approach; Fortune shares more details about how the fund operates and the eye popping returns the fund has returned to date. Source