SPY vs VOO: ETF overlap
Holdings as of June 30, 2026 · SEC fund filings · SPY source document · VOO source document
Overlap by weight: for each stock both funds hold, take the smaller of its two weights, then add those up. 99% means about 99 cents of every dollar in one fund is invested in the same companies, at the same size, as the other. The overlap level is PortLens's grouping of that figure, not an industry standard. What is ETF overlap?
SPY and VOO hold 500 of the same stocks, overlapping by 99.5% of portfolio weight — the two funds hold substantially the same companies; they differ mainly in cost and structure. The largest shared position is NVIDIA Corp (NVDA), at 7.5% of SPY and 7.5% of VOO.
Top shared holdings
| Company | Ticker | % of SPY | % of VOO |
|---|---|---|---|
| NVIDIA Corp | NVDA | 7.52% | 7.51% |
| Apple Inc | AAPL | 6.59% | 6.59% |
| Microsoft Corp | MSFT | 4.30% | 4.30% |
| Amazon.com Inc | AMZN | 3.62% | 3.62% |
| Alphabet Inc | GOOGL | 3.25% | 3.25% |
| Broadcom Inc | AVGO | 2.77% | 2.77% |
| Alphabet Inc | GOOG | 2.59% | 2.59% |
| Micron Technology Inc | MU | 2.02% | 2.02% |
| Meta Platforms Inc | META | 1.92% | 1.92% |
| Tesla Inc | TSLA | 1.84% | 1.84% |
Fund facts
| SPY | VOO | |
|---|---|---|
| Fund | State Street SPDR S&P 500 ETF | Vanguard S&P 500 ETF |
| Style | Growth | Growth |
| Assets | $813.8B | — |
| Beta | 1.01 | 0.99 |
| Top sectors | Technology 48%, Communication Services 14%, Consumer Cyclical 11% | Technology 48%, Communication Services 14%, Consumer Cyclical 11% |
Computed from 503 listed holdings of SPY (100% of the fund) and 504 of VOO ( 100%). How this is computed: methodology. Informational only, not investment advice — see disclosures.
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