Big-box Retail companies shares mixed at 10 a.m.

IndustriesAssociated Press

Shares of some top big-box retail companies are mixed at 10 a.m.:

Costco Wholesale Corp. rose $.20 or .2 percent, to $118.21.

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Target rose $.05 or .1 percent, to $60.05.

Wal-Mart Stores Inc. fell $.11 or .1 percent, to $76.71.