NEW YORK ( TheStreet) -- CHANGE IN RATINGSApplied Materials ( AMAT) was downgraded at Needham from Buy to Hold. Estimates were also cut, given a more cautious industry outlook, Needham said. Amazon.com ( AMZN) was upgraded at Credit Suisse from Neutral to Outperform. $270 price target. Estimates were also boosted, as recent investments should pay off, Credit Suisse said. Infoblox ( BLOX) was initiated with an Equal-Weight rating at Morgan Stanley. Valuation call, Morgan Stanley said. Cepheid ( CPHD) was upgraded at UBS to Buy from Neutral. $45 price target. Recent decline offers buying opportunity, UBS said. Carter's ( CRI) was initiated with a Market Perform at FBR Capital Markets. Valuation call, based on a $54 price target, FBR said. Dominion Resources ( D) was upgraded at Jefferies to Buy from Hold. $58 price target. Valuation is favorable, Dominion said. Brinker International ( EAT) numbers were raised at UBS. Shares are now seen reaching $35. Estimates were also increased as sustainable sales warrant higher valuation, UBS said. Buy rating. Flextronics ( FLEX) was upgraded at Bank of America/Merrill Lynch to Buy from Neutral. $8.50 price target. Structural mix shift favorable to margin profile, BofA/Merrill said. Groupon ( GRPN) was upgraded at Sterne Agee from Neutral to Buy. $20 price target. Company is leveraging higher sales in North America, Sterne Agee said. Groupon was upgraded at Citigroup from Neutral to Buy. $22 price target. Company is posting higher seasonal growth, Citi said. Hartford Financial ( HIG) was upgraded at Stifel Nicolaus from Hold to Buy. Valuation call, based on a $24 price target, Stifel Nicolaus said. Jabil Circuit ( JBL) was upgraded at Bank of America/Merrill Lynch to Buy from Neutral. $28 price target. History shows iPhone launches are a significant catalyst, BofA/Merrill said. Juniper Networks ( JNPR) was upgraded at Bank of America/Merrill Lynch from Neutral to Buy. $25 price target. Valuation call, as the stock is down 55% over the past 12 months, BofA/Merrill said. McDermott International ( MDR) was upgraded at DA Davidson to Buy from Neutral. $16 price target. Earnings stabilizing, growth prospects improve, DA Davidson said. Maximus ( MMS) was initiated with a Buy rating at Bank of America/Merrill Lynch. $54 price target. Company has low exposure to Medicaid and can generate 10% organic growth, BofA/Merrill Lynch said.