Analyst CornerAnalyst Corner: Amazon Joins Walmart in the 10%-Market-Share Club, with John Mercer John Mercer, Head of Global Research and Managing Director of Retail Research Sector Lead: John Mercer, Head of Global Research and Managing Director of Retail Research July 19, 2026 Reasons to ReadEach Analyst Corner features highlights and insights from the respective week’s “Report of the Week”—our featured must-read research report. This week, our featured report was Market Navigator: US Retail—A Fracturing Market Headed Toward $6 Trillion. Discover which retail giants are reshaping the US market—and what their dominance means for every other retailer in 2026. Read this Analyst Corner to discover answers to these and other questions: Which two retail companies have, for the first time, each captured more than 10% of total US retail sales? How many companies captured close to half of the dollar growth in total US retail sales between 2019 and 2025? What characterizes “top-tier market-share consolidators,” and how are higher-margin nonretail revenues underwriting their retail operations? How are convenience offerings and paid memberships locking in higher-income shopper loyalty? How can retailers in 2026 seize a one-time opportunity for lasting competitive advantage? Companies mentioned in this report are: Amazon and Walmart Inc. Related research: Market Navigator: US Retail—A Fracturing Market Headed Toward $6 Trillion All Analyst Corners This document was generated for
