A new lawsuit between D.E. Shaw and a former subsidiary unveils the complicated dealmaking that has come to be a part of many large-scale hedge funds, and the difficulties in valuing private companies. The suit alleges that the $50 billion hedge fund sold off a litigation finance unit at a discount, and that the unit's founder did not receive the same payout as other equity holders. Click here for more BI Prime stories. An ongoing legal battle between high-powered hedge fund D.E. Shaw and a former executive is shining light on the difficulty of valuing private companies.