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Alcoa Inc. (NYSE: AA) shares closed up a modest 3.79 percent yesterday on nearly 42 million shares traded. During intra-day trading the stock hit 9.75, just a quarter shy of its 52-week high. Goldman Sachs sees high-margin growth in the aluminum maker's downstream business and has issued a "buy" rating for the stock.

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Vapor Corp. (OTC: VPCO) shares rallied 18.33 percent on Monday on nearly 900,000 shares traded. The stock traded in a range of 1.20 - 1.48 yesterday and had no significant news to explain the pop. Vapor Corp. designs, markets, and distributes electronic cigarettes and accessories primarily in the United States and Canada.

Get more information on Vapor Corp. and free access to the in-depth equity report at: www.TrendingWallStreet.com/stockquote/VPCO

Harvest Natural Resources Inc. (NYSE: HNR) shares closed up 20.55 percent on Monday on about 1.8 million shares traded. The stock traded in a range of 3.26 and 4.05 yesterday. There was no significant news to explain the stocks move up. Harvest Natural Resources, Inc., an independent energy company, engages in the acquisition, exploration, development, production, and disposition of oil and natural gas properties.

Get more information onHarvest Natural Resources Inc. and free access to the in-depth equity report at: www.TrendingWallStreet.com/stockquote/HNR

OraSure Technologies, Inc. (NYSE: OSUR) shares closed down 16.60 percent on Monday making it one of the biggest percentage droppers on the NYSE. The stock traded roughly 4.2 million shares yesterday. The company announced that it is reaffirming its fourth quarter 2013 financial guidance, which the Company last updated in a press release it issued on November 21, 2013. This reaffirmation is being made after the Company learned today that a customer of its molecular collection systems subsidiary, DNA Genotek, received a warning letter from the U.S. Food and Drug Administration (FDA) requesting that this customer immediately discontinue marketing its service in the U.S. This customer represented less than 5 percent of OraSure's 2013 consolidated net revenues through September 30, 2013.

Get more information onOraSure Technologies, Inc. and free access to the in-depth equity report at: www.TrendingWallStreet.com/stockquote/OSUR

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