The Maze: Global ecommerce still has a scale king. Amazon is projected at $845B in 2025 GMV, ahead of Pinduoduo at $792B and Douyin at $582B. But the more interesting fight sits in the growth column. TikTok Shop is projected to grow +59.4% in 2026, while Temu, Douyin and AliExpress also outpace most mature players. The market is moving from search-led retail to attention-led commerce.
Scale and momentum now point in different directions. The visible ranking puts Amazon first by 2025 GMV, but seven of the top 14 platforms are China-origin players: Pinduoduo, Douyin, Taobao.com, Tmall, JD.com, Kuaishou, AliExpress, Temu, TikTok Shop and SHEIN all sit inside the global field. ECDB’s public retailer sample also shows Amazon and Pinduoduo as the two largest online retailers in 2025, with Amazon at roughly $847B and Pinduoduo at roughly $780B on its sample page. That supports the core story: Amazon remains the benchmark, but China’s platform stack now defines much of the competitive map.
The growth leaders are not traditional search shelves. TikTok Shop sits near the bottom of the GMV table at $66B, tied with SHEIN, yet its projected +59.4% growth is the loudest number in the set. Temu is smaller at $73B but grows +13.4%. Douyin is already huge at $582B and still grows +12.6%. AliExpress adds +10.5%. The pattern is clear: discovery, content, creator loops and cross-border value propositions are producing more momentum than mature catalog-led models. The LinkedIn comments sharpen the point: one reader called it less a marketplace battle than a battle for attention.
ECDB’s methodology makes the comparison useful, but not simple. ECDB says first-party net sales and third-party GMV are not naturally comparable, because one measures owned retail sales while the other measures marketplace transaction volume. Its newer Total GMV approach adds first-party VAT and third-party GMV to create a more consistent ranking across stores, marketplaces and hybrids. That matters here because Amazon, Walmart, JD.com and Tmall do not run the same operating model as eBay, Temu or TikTok Shop. The table compares commercial scale, not identical revenue quality.
The weak spots are also visible. JD.com is projected at $501B but -0.8% growth, while Taobao.com and Tmall sit above $540B with only +1.3% and +0.9%. That does not mean they are broken. It means the mature China ecommerce shelf is slowing while content-led and value-led models absorb more attention. The comment thread echoes this tension: some readers saw China’s discovery commerce as the future; another argued it may remain partly a Chinese consumer behavior pattern. Both can be true. The model may travel, but not with the same speed everywhere.
For brands, the channel playbook is fragmenting. The post’s practical warning is right: an Amazon playbook will not automatically work on Douyin, TikTok Shop, Tmall, Temu, SHEIN or Shopee. Amazon optimizes search, reviews, ads and fulfillment. TikTok Shop rewards content rhythm and creator distribution. Temu competes through price, assortment and cross-border supply-chain pressure. Shopee is shaped by Southeast Asian mobile behavior. ECDB says its data model connects retailers, markets and consumers across multiple inputs, but operators still have to localize by platform. Platform fit is becoming an operating capability, not a media plan.
Why it matters: Marketplace strategy used to mean choosing where to list. Now it means choosing which demand system to serve. Search captures intent. Discovery manufactures it. Logistics protects conversion. Ads monetize attention. The platforms with the best bundle will force brands to localize content, pricing, fulfillment and merchandising by channel. Scale still matters. But adaptability is becoming the new shelf space.
