Blackrock was the largest ETF manager worldwide, with 37 percent of the market share in 2018. Other leading ETF providers were State Street, Vanguard and State Street. In the United States, the largest ETF in 2016 was SPDR S&P 500 ETF, managed by State Street, with assets reaching 224.82 billion U.S. dollars.
The assets of global ETFs increased from 417 billion U.S. dollars in 2005 to 4,685 billion U.S. dollars in 2018. The region where the value of ETFs proved to be the largest was the United States, with fund assets amounting to approximately 3.28 trillion U.S. dollars in 2017. Europe followed with ETF assets nearing 750 billion U.S. dollars.