Hedge funds are infamous for their lack of transparency to the outside world. Och-Ziff Capital Management, one of the biggest institutional alternative asset managers in the world, doesn't have that luxury. It is one of few U.S.-based publicly traded hedge fund firms, with a listing on the New York Stock Exchange. As a publicly traded firm, Och-Ziff must disclose information most hedge funds prefer to keep private, such as quarterly earnings and revenues, and it must balance the interests of investors in its funds with those of investors in its stock. The conservative investing style of founder Daniel Och has certainly appealed to investors in Och-Ziff's funds; the firm's capital has increased from $100 million in 1994…