Walmart Stores has entered into an agreement with McClaren Farms to source Angus beef to be marketed under a private-label.
This move first negotiated in April 2019 will establish a brand to market Angus filet mignon, T-bone, Porterhouse and ribeye steaks. All products will be produced in the U.S. and will be free of "hormones".
The primary motivation for the Walmart action was to avoid any interruption in supply such as the disruption following the emergence of COVID in March and April of 2020. To establish and market a brand Walmart requires a secure source of consistent high quality with traceability.
It is of course possible if the arrangement with McClaren Farms is beneficial to Walmart that the strategy might be extended to chicken.