Analyst Upgrades

• JPMorgan upgraded Vivus (VVUS) to overweight from neutral.
• Citigroup upgraded Corn Products (CPO) to buy from hold.
• Maxim Integrated (MXIM) was upgraded to outperform from market perform at FBR Capital.
• Cardinal Health (CAH) was upgraded to outperform from neutral at RW Baird.
• Citigroup upgraded Monster Worldwide (MWW) and EchoStar (SATS) to buy from hold, as well as Las Vegas Sands (LVS) to buy from sell.
• BMO Capital upgraded Potash (POT) and Barrick Gold (ABX) to outperform from market perform.

Late Monday, Standard & Poor's announced that Dress Barn (DBRN) has been selected to join its S&P MidCap 400 Index (MID). The retailer will replace outgoing MID member Terra Industries (TRA), which is in the process of being acquired by CF Industries (CF).

Dress Barn is slated to join MID after the close of trading on Friday, April 9, when CF's exchange offer to acquire Terra is expected to be complete. Meanwhile, NorthWestern Corp. (NWE) will step into Dress Barn's former spot in the S&P SmallCap 600 Index (SML).

Analyst upgrades:

• Jefferies upgraded shares of Devon Energy (NYSE: DVN) to Buy from Hold on expectations that Haynesville results could be a catalyst in 2009. The firm raised their target to $100 from $94.
  
• Friedman Billings upgraded shares of Republic Services (NYSE: RSG) to Outperform from market Perform following the completed merger with Allied Waste (NYSE: AW).
  
• KeyBanc upgraded NorthWestern (NYSE: NWE) to Buy from HOld as they expect the Montana commission to grant the company's pending request for an accounting order to smooth pension expenses over five years.
• EnCana (NYSE: ECA) was upgraded to Neutral from Sell at Goldman.
  
• Goldman also upgraded Questar (NYSE: STR) to Buy from Neutral.
  
• Kinross Gold (NYSE: KGC) was raised to Outperform from Neutral at Credit Suisse.

Analyst downgrades: