Vanguard's VTI Joins the Half-Trillion-Dollar Club

The Vanguard Total Stock Market ETF (VTI) has officially joined the half-a-trillion-dollar club.

With $502.1 billion in assets under management, the total market ETF becomes just the fourth U.S.-listed ETF to cross the $500 billion threshold, joining the ranks of the Vanguard S&P 500 ETF (VOO), the SPDR S&P 500 ETF Trust (SPY) and the iShares Core S&P 500 ETF (IVV). Those three S&P 500 ETFs each have between $620 billion and $690 billion in AUM.

VTI Sees Strong Flows

VTI has pulled in $19 billion of net inflows so far in 2025, the third most of any ETF this year. Only VOO and the iShares 0-3 Month Treasury Bond ETF (SGOV) have seen larger inflows.

What sets VTI apart from its S&P 500 peers is its broader scope. The fund tracks the CRSP US Total Market Index, which includes large-, mid- and small-cap stocks, giving it exposure to more than 3,500 companies in total. That’s in contrast to the roughly 500 large-cap names tracked by the S&P 500.

That broader reach has led to slightly lower returns in recent years. Over the past five years, VOO is up 113% compared to VTI's 107% gain. The performance gap reflects the dominance of mega-cap stocks, particularly the so-called “Magnificent Seven,” which have powered most of the market’s gains.

Still, many investors consider VTI to be a more complete reflection of the U.S. equity market. If smaller companies start to outperform again, the total market fund could close the gap.

Regardless of recent relative performance, continued inflows could put it on track to join the trillion-dollar club, alongside the biggest S&P 500 ETFs in the coming years.

In some ways, it’s already there. The total market strategy VTI represents is much larger than the ETF alone. Vanguard’s mutual fund versions of the same index add another $1.4 trillion in assets, bringing total AUM to nearly $1.9 trillion across all share classes.