Analyst upgrades 5-30-07: Coca-Cola upgraded to Buy

MOST NOTEWORTHY: Coca-Cola (KO), Fiserv, Inc (FISV) and several real estate companies were today's noteworthy upgrades:

Coca-Cola (NYSE: KO) was upgraded to Buy from Hold at Citigroup, as the firm believes the company is addressing growth issues through recent acquisitions and notes that there are signs of stabilization in Japan.
Fiserv (NASDAQ: FISV) was upgraded to Outperform from Neutral at Cowen based on valuation, upside from restructuring, new management's willingness to unlock value, and the potential possibility of a company sale.
Deutsche Bank upgraded Apartment Investment and Management Co (NYSE: AIV), AvalonBay Communities (NYSE: AVB), Boston Properties (NYSE: BXP), Developers Diversified Realty Corp (NYSE: DDR), Kilroy Realty Corp (NYSE: KRC), Kimco Realty Corp (NYSE: KIM), Macerich Co (NYSE: MAC) and Simon Property Group (NYSE: SPG).

OTHER UPGRADES:

RBC Capital upgraded Texas Roadhouse (NASDAQ: TXRH) to Outperform from Sector Perform, citing valuation and improved EPS outlook.
Kenexa Corp (NASDAQ: KNXA) was upgraded to Outperform from Neutral at Credit Suisse, citing valuation and reduced risk from the BrassRing acquisition.
Goldman Sachs added Foster Wheeler (NASDAQ: FWLT) added to its Conviction Buy List, citing valuation and leverage to energy infrastructure build and power.
Goldman also added ProLogis (NYSE: PLD) to its Conviction Buy list, citing upside to FFO guidance, favorable domestic and international demand and above-average development margins.