Investors and traders often get to read about the Wall Street analyst upgrades, but they often do not get to hear when to sell or avoid a stock. Each morning 24/7 Wall St. reviews literally dozens of Wall Street analyst research reports with a goal of finding fresh ideas for investors and traders. Some turn out to be stocks to buy and others stocks to sell. These are this Thursday’s top analyst upgrades, downgrades and initiations seen from Wall Street research firms.

Banco Bilbao Vizcaya Argentaria S.A. (NYSE: BBVA) was raised to Outperform from Neutral by Credit Suisse.

Caterpillar Inc. (NYSE: CAT) was started as Equal Weight at Morgan Stanley

Deere & Co. (NYSE: DE) was started as Underweight with a $72 price target (versus $84.48 close) by Morgan Stanley.

Dollar General Corp. (NYSE: DG) was raised to Buy with a $66 price target at Sterne Agee.

Groupon Inc. (NASDAQ: GRPN) was raised to Overweight from Equal Weight at Morgan Stanley.

Lockheed Martin Corp. (NYSE: LMT) was downgraded to Sector Perform from Outperform at RBC Capital Markets.

Lululemon Athletica Inc. (NASDAQ: LULU) was reiterated as Neutral but the price target was raised to $78 from $73 (versus $70.10 close) at Credit Suisse.

Newmont Mining Corp. (NYSE: NEM) was downgraded to Equal Weight from Overweight at Barclays.

OpenTable Inc. (NASDAQ: OPEN) was downgraded to Equal Weight from Overweight on valuation by Morgan Stanley.

Starbucks Corp. (NASDAQ: SBUX) was started as Outperform with an $80 price target (versus $72.14 close) at Wedbush.

Transocean Ltd. (NYSE: RIG) was raised to Outperform from Neutral with a $60 target price (versus $45.39 close) at Credit Suisse.

Zillow Inc. (NYSE: Z) was downgraded to Underweight from Equal Weight at Morgan Stanley; shares are down 3% after a $100.50 close.

Deutsche Bank has issued a tech research report showing that large networking giants are set to take even more selective market share.