The US stocks continued trading on a negative territory as oil prices rose above $105 a barrel mark. During the day's trading, several stocks were either upgraded or downgraded by analysts and rating agencies. Some notable upgrades or downgrades are discussed here.
JMP Securities has upgraded Dynex Capital Inc (NYSE: DX) to Outperform from Market Perform with a price target of $11. However, DX lost 0.19 percent or $0.02 to $10.46.
Ensco PLC (NYSE: ESV) added 3.55 percent or $2.01 to $56.40 as it is upgraded to Outperform from Neutral at Credit Suisse.
Carmike Cinemas Inc (NASDAQ: CKEC) is upgraded to Buy from Neutral at Merriman. CKEC gained 8.15 percent or $0.55 to $7.30 after the news.
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Piper Jaffray has hoisted MoneyGram International Inc (NYSE: MGI) to Neutral from Underweight. MGI added 1.31 percent or $0.04 to $3.09.
Tractor Supply Company (NASDAQ: TSCO) added 0.22 percent or $0.12 to $54.35 as it is upgraded to Outperform from Neutral by brokerage firm Robert W. Baird.
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Suntech Power Holdings Company Ltd (NYSE: STP) gained 1.89 percent or $0.17 to $9.17 despite being downgraded to Underweight from Neutral with a price objective of $6.60 at HSBC Securities.
Argus has downgraded United Natural Foods Inc (NASDAQ: UNFI) to Hold from Buy. UNFI lost 2.74 percent or $1.19 to $42.19.
Mosaic Company (NYSE: MOS) lost 2.21 percent or $1.81 to $79.75 as it is downgraded to Hold from Buy at Citigroup.
Whiting Petroleum Corporation (NYSE: WLL) slipped 1.44 percent or $0.97 to $66.16 after being downgraded to Market Perform from Outperform at Morgan Keegan.
Xoma Limited (NASDAQ: XOMA) is downgraded to Hold from Buy at Canaccord. XOMA fell 1.94 percent or $0.10 to $5.05.