Weekday was the H&M Group brand associated with the merger of Weekday, Monki, and Cheap Monday operations.
H&M Group reorganized parts of its portfolio around Weekday as it streamlined its brand structure. The move brought several youth-oriented and streetwear-related activities under a more unified operating framework.
This does not mean that Weekday, Monki, and Cheap Monday were originally the same brand. They developed with different histories and identities. Weekday grew from a Scandinavian fashion retail concept, Monki became known for expressive womenswear, and Cheap Monday was particularly associated with denim.
Portfolio reorganizations can make H&M Group brand questions confusing because ownership, operating structure, and customer-facing labels are not always identical. The question asks for the resulting operating brand, not the original founders or a product category.