10. HH Index Discount Deparment Store Market Cap (Billions) % Market Cap HH Index Wal-Mart Stores Inc. 184.83 0.77 5933.89 Target Corp. 23.49 0.10 95.84 Costco Wholesale Corp. 19.51 0.08 66.12 Family Dollar Stores Inc. 3.89 0.02 2.63 Dollar Tree Inc. 3.87 0.02 2.60 HH = 6101.08