Top Analyst Upgrades and Downgrades: Avago, Exelixis, Gap, Groupon, Staples, Tesla and More

Stocks were firm on Tuesday morning after the Labor Day weekend. Investors remain optimistic now that the DJIA has crossed 17,000 and after the S&P 500 hit 2,000 last week. They are also looking for value and individual overlooked stocks. 24/7 Wall St. reviews dozens of research reports each morning for new ideas for our readers. Some of these research reports cover stocks to buy, while others cover stocks to sell or stocks to avoid.

These are this Tuesday’s top analyst upgrades and downgrades from 24/7 Wall St.

Abengoa S.A. (NASDAQ: ABGB) was maintained as Buy and listed as a Best Idea with a $44 price target at Canaccord Genuity.

Avago Technologies Ltd. (NASDAQ: AVGO) was reiterated as Outperform by Pacific Crest, but the price target was raised to $90 from $85.

American Water Works Inc. (NYSE: AWK) was downgraded to Market Perform from Outperform at Wells Fargo.

Cabot Oil & Gas Corp. (NYSE: COG) was raised to Buy from Hold at Stifel

Exelixis Inc. (NASDAQ: EXEL) has halted its prostate cancer drug development after not meeting its endpoint, seeing its shares more than halved. The biotech was downgraded to Market Perform from Outperform at Cowen & Co.