Exchange-traded funds, or ETFs, are among the most popular investment vehicles. Since their introduction in the 1990s, they've grown rapidly, and the total ETF market is now worth over $13 trillion. Most of that money is concentrated with the largest ETF issuers, which dominate the market.
BlackRock (BLK +2.65%) is the leader for ETFs, but Vanguard isn't far behind with its low-cost index funds. Keep reading to see the largest ETF issuers and how much they have in assets under management (AUM) as of January 2026.
Editors note: Some data will be from 2025 as not all facts and numbers will have updated as of January 2026. Any data not updated by the individual companies and firms will be marked as such and will be updated as soon as possible.