Today's noteworthy downgrades include: Abengoa Yield (ABY) downgraded on CEO change at Canaccord... Allegiant Travel (ALGT) downgraded to Market Perform from Outperform at Raymond James... American Eagle (AEO) downgraded to Perform from Outperform at Oppenheimer... Beacon Roofing (BECN) downgraded to Equal Weight from Overweight at Stephens... Boulder Brands (BDBD) downgraded to Hold from Buy at Wunderlich... Changyou.com (CYOU) downgraded to Sell from Neutral at Goldman... Coty (COTY) downgraded to Underweight from Equal Weight at Morgan Stanley... FedEx (FDX) downgraded to Peer Perform from Outperform at Wolfe Research... Lockheed Martin (LMT) downgraded to Underweight from Equal Weight at Barclays... Marriott (MAR) downgraded to Hold from Buy at Evercore ISI... Medifast (MED) downgraded to Neutral from Buy at Sidoti... PACCAR (PCAR) downgraded to Sector Perform from Outperform at RBC Capital... Prestige Brands (PBH) downgraded to Underperform from Hold at Jefferies... Prologis (PLD) downgraded to Market Perform from Outperform at Wells Fargo... Raytheon (RTN) downgraded to Equal Weight from Overweight at Barclays... SINA (SINA) downgraded to Neutral from Buy at Goldman... Seadrill Partners (SDLP) downgraded to Perform from Outperform at Oppenheimer... Sohu.com (SOHU) downgraded to Sell from Neutral at Goldman... SouFun (SFUN) downgraded to Neutral from Buy at Goldman... Starwood (HOT) downgraded to Hold from Buy at Evercore ISI... TerraForm Global (GLBL) downgraded to Market Perform from Outperform at Avondale... TerraForm Power (TERP) downgraded to Market Perform from Outperform at Avondale... lululemon (LULU) downgraded to Underperform from Market Perform at FBR Capital.

Deutsche Bank raised the firm's price target on Lockheed Martin to $487 from $467 and keeps a Hold rating on the shares. The company reported solid Q1 results, the analyst tells investors in a research note. The firm says that while the Street mis-modeling the extra week played a part in this quarter's outperformance versus sell-side estimates, "there were also pockets of fundamental outperformance." It sees upside to full-year sales estimates.