Investors and traders alike often look for new research ideas that can lead to higher income and profits. 24/7 Wall St. reviews dozens of new analyst research calls each morning. Some turn out to be stocks to buy and others end up being stocks to sell. We have broken out the positive analyst calls, and these are some of Friday’s top analyst upgrades, initiations and positive analyst research calls seen from Wall Street.

Constellation Brands Inc. (NYSE: STZ) was raised to Buy from Neutral at BofA/Merrill Lynch.

Diageo PLC (NYSE: DEO) was raised to Buy from Neutral at Citigroup.

E*Trade Financial Corp. (NASDAQ: ETFC) was raised to Buy from Neutral with a new $19 price target at Goldman Sachs; Credit Suisse also raised its price target to $14.50.

Ericsson (NASDAQ: ERIC) was raised to Outperform from Neutral by Credit Suisse.

Five Below Inc. (NASDAQ: FIVE) was raised to Buy from Neutral at UBS

KeyCorp (NYSE: KEY) was raised to Outperform from Neutral at Credit Suisse.

Oasis Petroleum Inc. (NYSE: OAS) was raised to Buy from Hold with a $55 price target at Deutsche Bank and was raised to Buy from Neutral with a $53 price target at SunTrust.

QEP Midstream Partners L.P. (NYSE: QEPM) was started as Buy at Janney Capital, and note that four other firms started coverage earlier this week.

ServiceNow Inc. (NYSE: NOW) was started as Buy with a $55 price target at Canaccord Genuity.

Siemens A.G. (NYSE: SI) was raised Buy from Hold in overseas coverage by Societe Generale.

Splunk Inc. (NASDAQ: SPLK) was started as Buy with a $62 price target at Canaccord Genuity.

Stryker Corp. (NYSE: SYK) was raised to Outperform from Neutral by Credit Suisse.

SunTrust Banks Inc. (NYSE: STI) was raised to Buy from Hold with a new $39 price target at Deutsche Bank.

T-Mobile US Inc. (NYSE: TMUS) was raised to Outperform from Market Perform at William Blair.

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