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

IndustriesAssociated Press

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

Costco Wholesale Corp. rose $.07 or percent, to $147.05.

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Target rose $.61 or .7 percent, to $81.95.

Wal-Mart Stores Inc. rose $.36 or .5 percent, to $78.79.