Generated October 3, 2026.
Overview
IVV and VOO are both ETFs that track the S&P 500 Index, aiming to replicate the performance of 500 large-cap U.S. equities. They are functionally identical in strategy, holding the same underlying securities with the same weighting scheme.
How they differ
Both charge 0.03% and hold identical index exposure with 1.0 beta, making them economically equivalent on fees and market risk. VOO holds a larger asset base at $1041B versus $888B, though both are substantial. This yield difference likely reflects minor variance in dividend timing, reinvestment capture, or holding-period dynamics rather than fundamental strategy divergence. IVV began trading in 05/15/2000, making it older by roughly a decade.
- VOO: Fits investors seeking the largest S&P 500 ETF by asset base and who favor Vanguard's structure, or those prioritizing a slightly lower distribution yield in a tax-deferred setting where yield drag matters less.
Key risks to know
- Index concentration and sector exposure: Both track the S&P 500, which has grown more concentrated in mega-cap technology stocks in recent years. A downturn in that segment will materially affect both funds in the same direction.
- Tracking error from cash drag: Minor differences in dividend capture timing and reinvestment between the two may create small and temporary tracking gaps, though both aim to minimize slippage.
- Large-cap equity market risk: Both funds carry full equity market risk and offer no downside protection or diversification beyond large-cap equities. Broad market declines will affect both proportionally.
Bottom line
IVV and VOO are near-perfect substitutes—same index, same fees, negligible yield spread. The choice between them hinges on issuer preference, existing holdings, or the specific platform's trading mechanics rather than any meaningful performance or cost advantage. Neither offers an edge over the other on a fundamental basis; past returns will not predict which performs better going forward.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.