The biggest winners over the past two-year period were retail chains, companies that sell primarily through brick-and-mortar stores and also sell online. Those chains increased their share of Digital Commerce 360’s Top 1000 sales to 32.4% in 2021 from 31.0% in 2019. Consumer brand manufacturers also gained share. Losing share were retailers we called direct marketers — mostly merchants with roots in selling through printed catalogs as well as those that sell through TV shopping shows — and web-only retailers other than Amazon. Looking at two-year ecommerce growth, retail chains in the Top 1000 registered the biggest gains on a percentage basis, followed by consumer brand manufacturers.