Here is a list of this morning’s top companies upgrades, downgrades, and initiations by brokerage firms. Upgrades: Cree (CREE) upgraded to Buy at Sidoti & Co. Globecomm Systems (GCOM) upgraded to Buy at Merriman Huntington Bancshares (HBAN) upgraded to Overweight at Morgan Stanley PepsiCo (PEP) added to Conviction Buy List at Goldman Potash Corp./Saskatchewan (POT) upgraded to Buy at Desjardins Smith [...]