On The Fly: Analyst Upgrade Summary Today's noteworthy upgrades include: DDR Corp. (DDR) upgraded to Buy from Hold at Jefferies... Gordmans Stores (GMAN) upgraded to Overweight from Neutral at Piper Jaffray... Pandora (P) upgraded to Outperform from Sector Perform at RBC Capital... Procter & Gamble (PG) upgraded to Buy from Neutral at UBS... Sherwin-Williams (SHW) upgraded to Outperform from Neutral at RW Baird... Wendy's (WEN) upgraded to Buy from Neutral at Janney Capital... Whiting Petroleum (WLL) upgraded to Buy from Neutral at SunTrust... Alliance Data (ADS) upgraded to Outperform from Market Perform at William Blair.