Investors and traders are frequently looking for fresh research ideas that will generate higher income or more profits. 24/7 Wall St. reviews many 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 10 of the top analyst upgrades, downgrades and initiations seen from select Wall Street research calls this Friday.

American Express Co. (NYSE: AXP) was downgraded to Equal Weight from Overweight at Barclays.

AngloGold Ashanti Ltd. (NYSE: AU) was downgraded to Sell from an already cautious Neutral at UBS.

Automatic Data Processing Inc. (NASDAQ: ADP) was started as Outperform at Raymond James.

E.I. du Pont de Nemours & Co. (NYSE: DD) was downgraded to Neutral from Buy at BofA/Merrill Lynch.

GameStop Corp. (NYSE: GME) was upgraded to Outperform from Perform at Oppenheimer.

Groupon Inc. (NASDAQ: GRPN) was upgraded to Buy from Hold after the investor meeting by Deutsche Bank. Shares are indicated up 7%.

Myriad Genetics Inc. (NASDAQ: MYGN) has a horse race after the Supreme Court denied patents covering your genes but does allow synthetic DNA patenting. The stock was upgraded to Outperform from Market Perform at JMP Securities. It was also downgraded to Sector Perform from Outperform at RBC Capital and to Neutral from Buy at BofA/Merrill Lynch.

Royal Bank of Scotland Group PLC (NYSE: RBS) was started as Buy at Jefferies.

SolarCity Corp. (NASDAQ: SCTY) was upgraded to Outperform from Neutral at Credit Suisse.

Wells Fargo & Co. (NYSE: WFC) was downgraded to Neutral from Buy at Sterne Agee.

Read Also: UBS Alpha Preferences List of the Best Stocks to Buy

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