Discover Financial Services (DFS) and Capital One Financial (COF) stocks fell on Monday after reports said that the U.S. Department of Justice (DOJ) had concerns regarding the $35 billion merger of the two companies.

Capital One Financial Corp. and Discover Financial Services shares fell after a report that staff at the US Department of Justice had concerns about their $35 billion merger.

Adds Capital One comment. Discover Financial (NYSE:DFS) and Capital One (CFO) quickly fell after a report that Dept. of Justice staff has concerns about the $35.3 billion deal. The DOJ staff has come to the conclusion that the planned purchase of Discover Financial (NYSE:DFS) would harm competition in the subprime sector,