Change in Ratings

Abbvie (ABBV - Get Report) was upgraded from Equal-weight to Overweight at Morgan Stanley. $73 price target. Estimates also boosted, given the company's new guidance.

Arthur J Gallagher (AJG - Get Report) was downgraded to Neutral at Goldman Sachs. Company lacks near-term catalysts.

Albermarle (ALB - Get Report) was upgraded to Buy at Citigroup. $62 price target. Company appears to be at a growth inflection point.

Arista (ANET - Get Report) was downgraded from Neutral to Sell at Goldman Sachs. $58 price target. Company is richly valued, but is facing potential growth headwinds.

AptarGroup (ATR - Get Report) was upgraded from Hold to Buy at Deutsche Bank. $84 price target. Company is realizing higher margins across the board.

Activision (ATVI - Get Report) was downgraded from Buy to Neutral at Bank of America/Merrill Lynch. Valuation call, as the stock is up 73% year-to-date. $37 price target.

Booz Allen (BAH - Get Report) downgraded at BofA/Merrill from Buy to Neutral at Bank of America/Merrill Lynch. Valuation call, based on a $33 price target.

Calpine (CPN was downgraded from Buy to Hold at Deutsche Bank. $20 price target. Company is facing growth headwinds.

Keycorp (KEY - Get Report) was upgraded to Buy at Citigroup. $16 price target. Merger-related decline has created a buying opportunity.

Moody's (MCO - Get Report) was downgraded from Outperform to Market Perform at FBR Capital Markets. $100 price target. Growth will likely slow in the coming quarters.

Restaurant Brands (QSR - Get Report) was downgraded to Sector Perform at RBC Capital. $44 price target. Expect Burger King to be a drag on growth.

Rackspace (RAX was upgraded to Buy at Bank of America/Merrill Lynch. $38 price target. Company is attractively valued, as the market appears to be stabilizing.

Seagate Technology (STX - Get Report) was downgraded from Buy to Hold at Maxim Group. $45 price target. Company will likely lose some market share to its competitors.

Wendy's (WEN - Get Report) was upgraded to Outperform at RBC Capital. $11 price target. Estimates also increased, as the company is executing well in a competitive environment.