More than 500,000 children have received the first $1,000 government deposits under Trump Accounts, a new program for U.S. citizens born between 2025 and 2028.
The accounts automatically invest contributions in a low-cost index fund, with holders gaining control at age 18 and paying tax on gains when they withdraw.
Trump cast the plan as a way to give children born without wealth an early stake in the stock market, while critics say families with little spare cash may struggle to add contributions.
Micron pledged $250 million to support the program, and companies including Visa, Dell and Comcast have also promised employer matches or extra seed funding.
The launch comes as living costs remain a major voter concern ahead of the November midterm elections, putting added focus on policies tied to household wealth and savings.