Top Analyst Upgrades and Downgrades (CERN, FCEL, KKD, GTAT, GRPN, MRVL, MCK, MDT, MCP, PSX, TSO, VIA, WLP)

These are the top analyst calls of upgrades, downgrades and initiations we have seen from Wall St. research calls this Friday morning.

Cerner Corp. (NASDAQ: CERN) cut to Equal Weight at Morgan Stanley.

FuelCell Energy Inc. (NASDAQ: FCEL) started as Market Perform at FBR.

Krispy Kreme Doughnuts Inc. (NYSE: KKD) started as Outperform at Wedbush Morgan.

GT Advanced Technologies Inc. (NASDAQ: GTAT) raised to Buy at Canaccord Genuity.

Groupon Inc. (NASDAQ: GRPN) cut to Underweight at Evercore.

Marvell Technology Group Ltd. (NASDAQ: MRVL) cut to Sector Perform at RBC.

McKesson Corp. (NYSE: MCK) cut to Equal Weight at Morgan Stanley.

Medtronic Inc. (NYSE: MDT) raised to Buy at Argus.

Molycorp Inc. (NYSE: MCP) cut to hold at boutique firm Dahlman Rose.

Phillips 66 (NYSE: PSX) started as Overweight at JPMorgan.

Tesoro Corporation (NYSE: TSO) started as Overweight at JPMorgan.

Viacom Inc. (NASDAQ: VIA) raised to Outperform at Wells Fargo.

Wellpoint Inc. (NYSE: WLP) cut to Equal Weight at Morgan Stanley.

JON C. OGG

Filed under: 24/7 Wall St. Wire, Analyst Calls Tagged: CERN, FCEL, GRPN, GTAT, KKD, MCK, MCP, MDT, MRVL, PSX, TSO, VIA, WLP