NEW YORK ( TheStreet) -- The following stocks received downgrades from TheStreet Ratings last week: Clean Energy Fuels ( CLNE), NYSE Euronext ( NYX), VCA Antech ( WOOF), Apache ( APA), Leucadia National ( LUK), Progress Software ( PRGS), Express ( EXPR) and Colfax ( CFX). Clean Energy Fuels was downgraded to sell from hold by TheStreet Ratings on Friday. TheStreet Ratings gives Clean Energy Fuels a D+ grade.
