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 analyst research calls from Wall Street and from boutique firms to find great ideas in value stocks, growth stocks and dividend stocks. Some are stocks to buy, while other ideas are stocks to sell. These are 10 of the top analyst upgrades, downgrades and initiations seen from select Wall Street research calls this Monday.

Apple Inc. (NASDAQ: AAPL) was upgraded to Strong Buy from Outperform with $600 price target at Raymond James.

Best Buy Co. (NYSE: BBY) was started as Outperform at Credit Suisse.

Biogen Idec Inc. (NASDAQ: BIIB) was upgraded to Buy from Neutral at Citigroup.

BlackBerry (NASDAQ: BBRY) was downgraded to Underperform from Hold at Needham; was downgraded to Equal Weight from Overweight at Morgan Stanley; was downgraded to Sell from Hold by Deutsche Bank.

F5 Networks Inc. (NASDAQ: FFIV) was downgraded to Hold from Buy at Needham.

3M Co. (NYSE: MMM) was downgraded to Equal Weight from Overweight at Morgan Stanley.

Nokia Corp. (NYSE: NOK) was raised to Overweight from Underweight at JPMorgan.

Valero Energy Corp. (NYSE: VLO) was downgraded to Underweight from an already cautious Neutral rating at Morgan Stanley.

Veolia Environnement S.A. (NYSE: VE) was upgraded to Neutral from Underperform at Credit Suisse.

YRC Worldwide Inc. (NASDAQ: YRCW) was raised to Buy from Hold at BB&T.

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