NEW YORK ( TheStreet) -- CHANGE IN RATINGS AECOM ( ACM) was downgraded to hold at TheStreet Ratings. Aeropostale ( ARO) was downgraded at Keybanc to underweight. Company is facing increased near-term pressures, Keybanc said. $10 price target. AthenaHealth ( ATHN) was initiated with a hold rating at Keybanc. Company will likely trail consensus EBITDA expectations next year, Keybanc said. Broadridge ( BR) was downgraded to underweight, J.P. Morgan said. Valuation call, as the sector has outperformed the broader market year to date, J.P. Morgan said. Cerner ( CERN) was initiated with a buy rating at Keybanc. $60 price target. Company can exceed consensus growth expectations in 2014, Keybanc said. CREE) was downgraded at DA Davidson to neutral from buy. $65 price target. Company is seeing weaker growth, which is hurting margins, DA Davidson said. Delta Air Lines ( DAL) was downgraded at J.P. Morgan to neutral. Uncertainty about mergers could hurt the entire industry, J.P. Morgan said. Global Payments ( GPN) was downgraded at J.P. Morgan to neutral. Industry is facing increased regulatory scrutiny, J.P. Morgan said. GlaxoSmithKline ( GSK) was upgraded to neutral at J.P. Morgan. Upcoming catalysts balance out earnings risk, J.P. Morgan said. HIG) was upgraded to buy at TheStreet Ratings. US Airways ( LCC) was downgraded to neutral at J.P. Morgan. AMR merger is facing increased regulatory scrutiny, J.P. Morgan said. US Airways was downgraded at Deutsche Bank to hold from buy. DOJ lawsuit is an unfortunate surprise, Deutsche Bank said. Petrologistics ( PDH) was downgraded at UBS to neutral from buy and given a $12 price target. The ratio of oil to gas is expected to decline and interest rates will rise negatively impacting the company, UBS said. Pepco ( POM) was downgraded at Williams Capital to hold from buy. $21 price target. Market expectations for rate-base growth appear optimistic, Williams Capital said. Parexel ( PRXL) was downgraded at Sterne Agee to underperform. $36 price target. Operating margin guidance appears aggressive, Sterne Agee said. Western Union ( WU) was downgraded at J.P. Morgan to underweight. Valuation call, as the stock is up 37% year to date, J.P. Morgan said.