Auto suppliers in retreat after Detroit automakers disappoint with U.S. sales

• Auto parts stocks after lower after Detroit automakers disappoint with July U.S. sales growth.
• The sector has been on watch since last week when Ford warned on a plateauing of the U.S. automobile market.
• Leading decliners include Lear (LEA -4.7%), Tenneco (TEN -3.8%), BorgWarner (BWA -3.8%), Dana Holding (DAN -3.2%), Motorcar Parts of America (MPAA -3.3%), Cooper-Standard Holdings (CPS -2.9%), and Delphi Automotive (DLPH -2.4%).