It is owned by the Ho S. Eun Trust and is published seven days a week.

The paper started in 2004 as the Guam edition of the Marianas Variety, which is based in Saipan.

[1] Ho S. Eun, the owner of local construction firm Core Tech International, bought the paper in 2015 and renamed it to The Guam Daily Post, when the newspaper was reportedly not making a profit.

[2][3] The Post and Pacific Daily News are the only two newspapers on Guam; Post CEO Mindy Aguon states that it surpassed Daily News circulation in late 2017.

[1] In January 2023, The Post stopped selling printed copies in the island’s 11 Navy Exchange stores.