The document provides information about Walmart's industry classification. Walmart operates in the retail trade sector and specifically the general merchandise stores sub-sector. It is classified under NAICS code 452112 for discount department stores. Within its industry, Walmart has the highest market capitalization, accounting for 77% of the total market cap of the discount retail sector. It has a growth rate that is not as high as other companies and the highest return on equity at 21.13% as a measure of profitability.