NEW YORK ( TheStreet) -- CHANGE IN RATINGSAMC Networks ( AMCX) rated new Overweight at JP Morgan. $43 price target. Pullback has created an attractive buying opportunity in the growing company. Amazon.com ( AMZN) rated new Outperform at Morgan Keegan. $210 price target. Company can continue to gain market share in North America. Acme Packet ( APKT) rated new Neutral at JP Morgan. $29 price target. Inflection point in growth may still be several quarters away. Bill Barrett ( BBG) downgraded to hold at TheStreet Ratings. Biglari Holdings ( BH) downgraded to hold at TheStreet Ratings. Broadcom ( BRCM) upgraded at Wells from Market Perform to Outperform, Wells Fargo said. Valuation call, as earnings should rebound in 2012. Boston Scientific ( BSX) downgraded at Goldman to Sell, Goldman Sachs said. Consensus estimates appear too high. BorgWarner ( BWA) downgraded at UBS from Buy to Neutral, UBS said. $68 price target. Europe headwinds remain despite german OEM exposure. Deckers ( DECK) downgraded at Sterne Agee from Buy to Underperform, Sterne Agee said. Estimates also cut, following disappointing channel checks for UGG. $72 price target. First Solar ( FSLR) downgraded at Baird from Outperform to Neutral, Robert Baird said. $35 price target. Company slashed it guidance and the business is in a transition period. Forest Oil ( FST) rated new Hold at Keybanc. Company still has to show that it can generate growth in newer shale areas. Gulfport Energy ( GPOR) rated new Outperform at Credit Suisse. $41 price target. Utica shale should continue to drive growth. Hospira ( HSP) rated new Sell at UBS. $25 price target. Recovery from manufacturing issues could be slow. ITC ( ITC) upgraded at Deutsche from Hold to Buy, Deutsche Bank said. Company can deliver above-average growth in the coming quarters. $79 price target. Kior ( KIOR) upgraded at Baird from Underperform to Neutral, Robert Baird said. Valuation call, based on a $10 price target. Laboratory Corp. ( LH) downgraded at Goldman to Sell, Goldman Sachs said. Industry is facing flat volumes and rising costs. Lam Research ( LRCX) upgraded at Needham from Hold to Buy, Needham said. $46 price target. NVLS purchase will improve scale and customer leverage. PerkinElmer ( PKI) upgraded at Goldman to Buy, Goldman Sachs said. Sentiment appears to have bottomed out for the group.