Retail media continued its expansion this week with Walmart making a notable strategic move: pulling Sam's Club more deeply into its broader advertising business. The development signals that Walmart is serious about building a unified retail media network that spans its various banners rather than operating them as siloed ad businesses. Sam's Club's membership model and purchase data make it a particularly attractive asset for advertisers seeking high-intent, closed-loop measurement — and integrating it more tightly with Walmart Connect could give the retailer a more compelling pitch against Amazon's retail media dominance.
The move also reflects a broader industry pattern in which retailers are racing to monetize their first-party data assets before the window of competitive advantage narrows. With Amazon, Kroger, Target, and Instacart all building out sophisticated ad platforms, Walmart's consolidation of its retail media assets under a more unified structure is a defensive as much as an offensive play. The Cannes backdrop gave the announcement added visibility, as retail media has become one of the festival's dominant conversation threads in recent years.