J.P. Morgan Accidentally Divulges Pershing Square Returns December 16, 2009: 04:35 PM ET NEW YORK -(Dow Jones)- Hedge fund managers go through great pains to keep their performance numbers private. But Wednesday, J.P. Morgan Chase & Co. (JPM) unwittingly divulged performance information on two Pershing Square Capital Management
hedge funds via email. The monthly numbers were good--Pershing Square...