NEW YORK ( TheStreet) -- CHANGE IN RATINGS Albermarle ( ALB) was downgraded at Sterne Agee to neutral from buy. Estimates were also cut, given a slower growth outlook, Sterne Agee said. Align Technology ( ALGN) was upgraded at Cantor Fitzgerald to buy from hold. $60 price target. Volume and pricing trends are improving, Cantor said. Advanced Micro ( AMD) was downgraded at Bank of America/Merrill Lynch to neutral from buy. Company remains leveraged to slower PC growth, BofA/Merrill said. $4.50 price target. Amazon.com ( AMZN) was upgraded at UBS to buy from neutral. Bullish secular backdrop for multichannel commerce accelerates revenue growth, UBS said. $385 price target. Alpha Natural ( ANR) was downgraded at BMO Capital to underperform from market perform. $4 price target. Expect to see more production cuts at the company, BMO Capital said. ATHN) was upgraded at Sterne Agee to buy. $132 price target. Estimates also upped, as core sales growth should accelerate in the coming quarters, Sterne Agee said. Aspen Technology ( AZPN) was downgraded at J.P. Morgan to neutral from overweight. $38 price target. Valuation call, J.P. Morgan said. Baxter ( BAX) was downgraded at Morgan Stanley to equal-weight from overweight. Estimates were also cut, given lower expected Advate growth, Morgan Stanley said. Peabody Energy ( BTU) was upgraded at BMO Capital to outperform from market perform. $23 price target. Costs are coming down in Australia and the stock is attractively valued, BMO Capital said. CBOE) was upgraded at UBS to buy from neutral. Strong secular growth and valuation call, UBS said. $56 price target. Cypress Semiconductor ( CY) was upgraded at Pacific Crest to sector perform from outperform. Valuation call, based on an $11 price target. Essex Property Trust ( ESS) was upgraded at UBS to buy from neutral. High exposure to strong rental growth in West Coast and promising development pipeline in CA, UBS said. Valuation call, $180 price target. Fairchild Semiconductor ( FCS) was downgraded at Canaccord Genuity to hold. Company offered a soft outlook for the fourth quarter and lacks near-term catalysts, Canaccord said. $12 price target. Finish Line ( FINL) was initiated with a neutral rating and $25 price target at UBS.