Investors and traders are usually on the lookout for new research ideas that will generate higher income or more profits. 24/7 Wall St. reviews many Wall St. analyst research calls to find great ideas in value stocks, growth stocks and dividend stocks. Some are stocks to buy, while some ideas are even stocks to sell. These are some of this Tuesday’s top analyst upgrades, downgrades and initiations seen from select Wall St. research calls.

American Electric Power Co. (NYSE: AEP) cut to Market Perform from Outperform at Wells Fargo.

Boston Properties Inc. (NYSE: BXP) raised to Overweight at Morgan Stanley.

Costco Wholesale Corp. (NASDAQ: COST) started as Buy at UBS.

DCT Industrial Trust Inc. (NYSE: DCT) raised to Buy at BofA/Merrill Lynch.

First Solar Inc. (NASDAQ: FSLR) reiterated Hold as its large-project pipeline is winding down, according to Argus.

Five Oaks Investment Corp. (NYSE: OAKS) started as Equal Weight at Barclays and started as Outperform at Credit Suisse.

Halcon Resources Corp. (NYSE: HK) started as Outperform at Raymond James.

Life Technologies Corp. (NASDAQ: LIFE) cut to Neutral at Credit Suisse.

Microsoft Corp. (NASDAQ: MSFT) raised to Overweight from Equal Weight at Morgan Stanley.

Owens Corning (NYSE: OC) raised to Buy from Neutral at Citigroup.

PAA Natural Gas Storage L.P. (NYSE: PNG) downgraded to Neutral by Citigroup.

Sarepta Therapeutics Inc. (NASDAQ: SRPT) downgraded to Neutral at Janney Capital and downgraded to Market Perform at Leerink Swann.

Sprint Nextel Corp. (NYSE: S) raised to Overweight from Neutral at J.P. Morgan and reiterated Buy and raised price target to $8.00 from $7.50 at Argus.

Target Corp. (NYSE: TGT) started as Neutral at UBS.

Wal-Mart Stores Inc. (NYSE: WMT) started as Buy at UBS.

Deutsche Bank unveiled a new list of small cap stocks that it thinks will lead the bull market charge.

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