NEW YORK ( TheStreet) -- CHANGE IN RATINGSAssurant ( AIZ) downgraded at Sterne Agee to Neutral, Sterne Agee said. Valuation call, based on a $52 price target. Alexion Pharmaceuticals ( ALXN) upgraded at UBS to Buy from Neutral, UBS said. $99 price target. Upgrade to buy on PNH, NMO and margins. Brocade ( BRCD) upgraded to buy at TheStreet Ratings. Community Health ( CYH) upgraded at Deutsche from Hold to Buy, Deutsche Bank said. $33 price target. Industry is leveraged to better economic growth. DryShips ( DRYS) downgraded to sell at TheStreet Ratings. Ericsson ( ERIC) upgraded at JP Morgan to Overweight, JP Morgan said. Expectations are low and the company has been gaining market share. HCA ( HCA) upgraded at Deutsche from Hold to Buy, Deutsche Bank said. Company is a market leader and the group appears more attractive. Human Genome ( HGSI) downgraded at Collins Stewart from Buy to Neutral, Collins Stewart said. $10 price target. Benlysta sales could fall short of expectations. Intuit ( INTU) rated new Hold at Stifel. Valuation cal. ITC ( ITC) upgraded at Wunderlich from Hold to Buy, Wunderlich said. $85 price target. Company should continue to deliver higher earnings and is trading at an attractive valuation. Itron ( ITRI) downgraded at BofA/Merrill to Underperform, Bank of America/Merrill Lynch said. Valuation call, based on a $45 price target. Juniper Networks ( JNPR) downgraded at FBR from Outperform to Market Perform, FBR Capital Markets said. $21 price target. Seeing more evidence of potential product delays. Kellogg ( K) upgraded at Deutsche to from Hold to Buy, Deutsche Bank said. Pringles purchase could prove to be an inflection point for the company. $57 price target. Level 3 ( LVLT) upgraded at Morgan Stanley from Equal-weight to Overweight, Morgan Stanley said. $31 price target. Estimates also boosted, given higher secular demand. MercadoLibre ( MELI) downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. $100 price target. Valuation call, as the stock is up 96% since October. Principal Financial ( PFG) upgraded at Sterne Agee from Neutral to Buy, Sterne Agee said. $35 price target. Company has solid long-term earnings growth potential. Volcano ( VOLC) downgraded at Feltl from Strong Buy to Buy, Feltl & Co. said. Recent guidance has been mixed.