US Ecommerce Market Shares 2026

Growth Rates and Incremental Sales Opportunities for Retailers

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About This Report
As ecommerce gains concentrate among a few dominant players, smaller retailers have an opening if they can carve out share in an increasingly uneven market.
Table of Contents

US ecommerce sales will grow by nearly $198 billion in the next two years. While Amazon and Walmart will account for a growing majority of these sales, there is still a $71 billion opportunity for smaller retailers.

This deck will:

  • Examine the size of the US ecommerce market by leading retailers’ market share.
  • Identify key shifts in market share between 2025 and 2027.
  • Isolate the white-space sales opportunities for smaller retailers.

authors

Blake Droesch

Contributors

Matteo Ceurvels
Suzy Davidkhanian
VP, Content
Nikolai Dineros
Brian Lau
Senior Forecasting Analyst
Penelope Lin
Director, Data Visualization
Cindy Liu
Senior Forecasting Analyst
Wendy Malloy
Director, Reports Editor
Emma Noyes
Senior Graphic Designer, Data Visualization
Matt Torpey
Senior Data Visualization Editor
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