Oasis Petroleum ( OAS) upgraded at Wells Fargo to outperform from market perform, Wells Fargo said. $40 to $45 valuation range. Strong operational momentum. Principal Financial ( PFG) downgraded at UBS to sell from neutral, UBS said. $27 price target. Accumulation business to remain under pressure. Philip Morris ( PM) upgraded at Goldman from neutral to buy, Goldman Sachs said. $103 price target. Company was also placed on the Conviction Buy list. Company offers growth and yield at an attractive valuation. Pepco ( POM) downgraded at Credit Suisse from outperform to neutral, Credit Suisse said. $20.50 price target. Company is facing multiple growth headwinds. Perrigo ( PRGO) downgraded at Goldman from neutral to sell, Goldman Sachs said. $110 price target. Growth could slow in the next few quarters. Research in Motion ( RIMM) downgraded at BMO to underperform, BMO Capital said. $9 price target. New BB10 phones will likely not stem market share losses. JM Smucker ( SJM) downgraded at Goldman from buy to neutral, Goldman Sachs said. Valuation call, based on a $93 price target. SodaStream International ( SODA) rated new buy at Citigroup. $60 price target. Skeptics abound but momentum is hard to dispute. Standard Pacific ( SPF) downgraded at JP Morgan from neutral to underweight, JP Morgan said. Valuation call, as the stock trades at a 35% premium to its peers. Molson Coors ( TAP) rated new buy at Nomura. $54 price target. Investor sentiment is too low and the company can continue to cut costs. Tenet Healthcare ( THC) upgraded at BofA/Merrill from neutral to buy, Bank of America/Merrill Lynch said. $44 price target. Company is improving margins and leveraging its balance sheet. Targa Resources ( TRGP) downgraded at BofA to neutral from buy, Bank of America Merrill Lynch said. $60 price target. Valuation call. Watson Pharmaceuticals ( WPI) downgraded at Goldman from buy to neutral, Goldman Sachs said. $96 price target. Valuation call, as the stock gained 43% in 2012. Watsco ( WSO) downgraded at JP Morgan to underweight, JP Morgan said. Valuation call, based on a $72 price target.