Towson, MD, August 23, 2005 � Campbell & Company today announced that Doug York, executive vice president and head trader, plans to retire from the firm, effective August 31, 2005. Bruce Cleland,president, made the announcement and said that Michael Harris, deputy manager � trading, will continue to supervise the day-to-day operations of the trading room and will report to Kevin Heerdt. Mr.Heerdt, chief operating officer and a member of the executive committee, will oversee the trading department and the equities research team.

After 25 years in trading, the last 13 of which have been spent at Campbell & Company, Mr. York plans to spend more time with his family and pursue other interests outside the company.

�Since he joined Campbell & Company�s trading department in November 1992, Doug has been a tireless advocate of new and better ways to transact our business, and he will leave an important and enduring legacy in that respect, � said Mr. Cleland. �We admire and appreciate the substantial contribution Doug has made to the firm, and we wish him and his family the very best in the future.�

Campbell & Company is based in Towson, Maryland, and is one of the oldest and largest alternative investment management firms in the world. The company was founded in 1972, and manages global futures, currencies and equities portfolios for clients, using systematic alternative investment strategies.