Investors piled more than $1.1 trillion into the U.S. ETF universe in 2024, with total assets reaching a record of at least $10 trillion.Investors piled more than $1.1 trillion into the U.S. ETF universe in 2024, with total assets reaching a record of at least $10 trillion. Investors piled more than $1.1 trillion into the U.S. ETF universe in 2024, with total assets reaching a record of at least $10 trillion. Read More MarketWatch.com – Top Stories