Marketplaces are growing at nearly three times the rate of traditional eCommerce, and the performance gap between single-channel and multichannel sellers has never been wider.

Sellers operating on two or more channels generate 17.5x more GMV than those on a single platform. Yet, two-thirds of sellers are still leaving that opportunity on the table.

This report uncovers the trends, benchmarks and strategies shaping marketplace success in 2026, and what it takes to stay competitive as agentic commerce rewrites the rules of product discovery.

Inside the report, you'll discover:

• The marketplace momentum: The trends driving the rapid growth of marketplaces, generating $13.9 trillion in GMV in 2025, a 20% year over year increase.

• The multiplier effects: The best-performing sellers aren't just on more channels, they're also leveraging how to use AI to sell smarter and faster.

• A practical guide for winning in the agentic era: How to increase discoverability, invest in data quality and optimize for AI-driven search (GEO).