What Are the Relative Sizes of Amazon, Walmart, and eBay?



Amazon is in the lead with about 50% of US online sales.

Ebay has about 6% of US online sales.

Walmart has about 3% of US online sales.


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Brian Roizen is the co-founder and chief architect of Feedonomics, a full-service feed optimization platform that optimizes product data for hundreds of channels. He has been featured on numerous podcasts and eCommerce webinars, and regularly contributes to Search Engine Land and other industry-leading blogs. Brian graduated summa cum laude from UCLA with both a Bachelor’s and Master’s degree in Mechanical Engineering.