The chain expanded north of the border as well, as it also had locations in predominantly working-class Mexican-American communities of the United States.

Supermercados Gigante competed with several other chains, such as Soriana, Comercial Mexicana, Chedraui, Wal-Mart, H-E-B, Falabella, Cencosud and D&S.

It was not uncommon to see Wal-Mart receipts around the store touting the fact that said items are cheaper at Supermercados Gigante.

On February 28, 2006 Gigante closed some stores in Mexico (1 in Torreon, 7 in Monterrey, 1 in Matamoros, 2 in San Luis Potosí and 1 in Puebla).

Grupo Gigante will remain in business as a company separate from Soriana, operating the Mexican Radio Shack and Office Depot locations, as well as the Toks restaurant chain.