VOO Calculator

VOO vs. IVV

Two near-identical S&P 500 funds from two different issuers — what actually distinguishes them?

At a glance

TickerFundIssuerIndex trackedExpense ratio
VOOVanguard S&P 500 ETFVanguardS&P 5000.03%
IVViShares Core S&P 500 ETFBlackRock (iShares)S&P 5000.03%

Data last verified: pending verification

Same index, same low cost, different issuer

IVV tracks the identical s&p 500 index as voo, from a different fund issuer. Unlike the VOO-vs-SPY comparison, there’s no meaningful structural or cost difference here — both are modern, open-end ETFs with historically similar expense ratios tracking the exact same index.

Which should you choose?

This is one of the few comparisons where the honest answer is: it mostly doesn’t matter. Pick whichever is commission-free at your broker, or whichever fund family you already prefer to consolidate around. Some investors deliberately hold both as a tax-loss harvesting pair, since they’re similar enough in exposure but distinct enough as securities to avoid wash-sale rules.

Project your investment with the VOO calculator — the results are a close approximation for IVV as well, given the identical underlying index.

More comparisons

  • VOO vs. SPY — same index, but a real cost and structure difference
  • VOO vs. VTI — large-cap only vs. the total U.S. stock market

Frequently asked questions

Functionally, yes. Both track the S&P 500 index, and both have historically carried very low, closely matched expense ratios. The main difference is the issuer — Vanguard for VOO, BlackRock's iShares brand for IVV — which mostly matters for brand preference, brokerage-specific commission-free lists, or tax-loss harvesting pairs rather than expected returns.

This calculator provides hypothetical estimates for educational purposes only and is not financial, tax, or investment advice. Past performance does not guarantee future results. voocalculator.app is not affiliated with, endorsed by, or sponsored by The Vanguard Group. VOO is a trademark of its respective owner. See our full disclaimer.