Most sector-leading stocks rose along with the overall market Wednesday, with FleetCor Technologies (FLT) and Valeant Pharmaceuticals (VRX) hitting new highs. Volume was mostly below average. Norcross, Ga.-based FleetCor edged up 0.24 to 55.98 in weak trade. The provider of fuel cards to commercial vehicle fleets is well out of buying range. Valeant Pharmaceuticals rose 1.53 to 63.82 in average volume, hitting a new high for the second straight