A major divergence is happening in exchange-traded funds (ETFs) tracking the blue-chip S&P 500 Index. The Vanguard S&P 500 ETF (NYSE:VOO) has continued to achieve record inflows as the popular SPDR S&P 500 ETF (NYSE:SPY) shed billions of dollars in assets.

VOO ETF Inflows Are Soaring This Year

Data compiled by ETF.com shows that the VOO ETF has had over $59 billion in inflows this year, bringing its net assets to over $927 billion. This makes it the biggest ETF in the United States and one of the fastest-growing ones. VOO was started in 2010 and will be the first fund to hit a $1 trillion AUM milestone.

In contrast, SPY, which is one of the most common ETFs, has continued to shed assets this year. It has had almost $9 billion in outflows, giving it over $797 billion in assets. Data shows that it has shed $20 billion in assets since January last year, while VOO has added $196 billion in the same period.

VOO ETF inflows since January 1, 2025 | Source: ETF