# Walmart is testing an initiative to store third-party marketplace merchandise in some of its supercenters.

*semiconductor · news · 2026-04-20 · Business Insider*

## Key points

- Walmart is piloting storage of third-party marketplace items in supercenter backrooms for faster delivery.
- Store redesigns and AI-powered warehouses at Walmart enable extra space for marketplace seller storage.
- Amazon is testing smaller-format fulfillment centers to deliver frequently purchased items within 30 minutes.
- Amazon is developing supercenter-style warehouse-store hybrids offering groceries, merchandise, and prepared foods.

**Companies:** Amazon, Walmart
**Countries:** United States

[Read the full story on Business Insider](https://www.businessinsider.com/walmart-amazon-racing-to-win-retail-ecommerce-2026-4)

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