Premarket roundup: Goldman Sachs, Broadcom

NEW YORK (AP)--A Wachovia Capital Markets analyst downgraded shares of Goldman Sachs Group Inc. on Thursday, saying the investment bank's recent strong performance will likely weaken due in part to concerns over the broader economy.

NEW YORK (AP)--An analyst initiated coverage of Broadcom Corp. late Wednesday, saying he expects the semiconductor company to post double-digit revenue growth this year.

NEW YORK (AP)--A Goldman Sachs analyst added Citigroup Inc. to a list of stocks to sell and cut estimates for Merrill Lynch & Co. late Wednesday while downgrading the brokerage sector.

NEW YORK (AP)--Analysts expect new Medicare legislation to boost profits for Lincare Holdings Inc. by keeping reimbursement rates for oxygen therapy steady, and delaying cuts to a key respiratory drug.