ETF comparison

IVV vs VOO overlap

Compare iShares Core S&P 500 ETF and Vanguard S&P 500 ETF by shared holdings, expense ratio, issuer, category, and tracked overlap.

Tracked overlap31.96%

11 shared holdings

IVV expense0.03%

BlackRock

VOO expense0.03%

Vanguard

Data date2026-05-01

2026-04-15

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

AAPLAPPLE INC

6.10%overlap weight

NVDANVIDIA CORP

5.50%overlap weight

MSFTMICROSOFT CORP

5.15%overlap weight

AMZNAMAZON.COM INC

3.80%overlap weight

GOOGLALPHABET INC CLASS A

2.50%overlap weight

METAMETA PLATFORMS INC CLASS A

2.39%overlap weight

Interpretation

Should you own both IVV and VOO?

IVV and VOO share 11 tracked holdings with 31.96% overlap in the imported holdings set. High overlap can be fine when the funds serve a deliberate role, but it can also mean less diversification than the ticker count suggests.

Use the portfolio analyzer to test your actual allocations. Pairwise overlap does not account for how much of each ETF you own.