Stock futures edge higher as investors focus on Fed

Stock futures edged higher on Wednesday, setting Wall Street up for a sixth day of gains, as investors anticipated the U.S. Federal Reserve will announce a new round of bond buying to support the economy.

* India's government announced an inquiry into lobbying practices by Wal-Mart Stores Inc. on Wednesday after a report that the giant retailer had pressed U.S. lawmakers to help gain access to foreign markets.

* Costco Wholesale Corp posted a 30 percent rise in quarterly profit, beating expectations, as the largest U.S. warehouse club chain saw sales rise and got a lift from higher membership fees.

* Sprint Nextel Corp is in talks with Intel Corp and Comcast Corp to buy out their stakes in the U.S. wireless provider Clearwire Corp , two people familiar with the matter said on Tuesday.

(Reporting by Angela Moon; Editing by Bernadette Baum)