Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
SPY vs VOO
SPDR S&P 500 ETF Trust and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, SPY and VOO hold 97% of their money in the same securities at the same weight.
| Holding | SPY | VOO |
|---|---|---|
| NVIDIA Corp. | 7.52% | 7.53% |
| Apple, Inc. | 6.59% | 6.61% |
| Microsoft Corp. | 4.30% | 4.31% |
| Amazon.com, Inc. | 3.62% | 3.63% |
| Alphabet, Inc. | 3.25% | 3.26% |
| Broadcom, Inc. | 2.77% | 2.78% |
| Alphabet, Inc. | 2.59% | 2.60% |
| Micron Technology, Inc. | 2.02% | 2.02% |
| Meta Platforms, Inc. | 1.92% | 1.92% |
| Tesla, Inc. | 1.84% | 1.84% |
| Eli Lilly & Co. | 1.47% | 1.48% |
| Advanced Micro Devices, Inc. | 1.47% | 1.47% |
| Only in SPY | Only in VOO |
|---|---|
| Linde plc 0.37% | Linde PLC 0.37% |
| Seagate Technology Holdings plc 0.34% | Seagate Technology Holdings PLC 0.34% |
| Eaton Corp. plc 0.26% | Eaton Corp PLC 0.26% |
| Chubb Ltd. 0.19% | Chubb Ltd 0.19% |
| Trane Technologies plc 0.17% | Trane Technologies PLC 0.17% |
| Medtronic plc 0.16% | Medtronic PLC 0.16% |
| Johnson Controls International plc 0.14% | Johnson Controls International plc 0.14% |
| Royal Caribbean Cruises Ltd. 0.12% | Royal Caribbean Cruises Ltd 0.12% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings as filed for Jun 30, 2026.
| SPY SPDR S&P 500 ETF Trust | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Core fund | Core fund |
| Issuer | State Street | Vanguard |
| What it is | S&P 500, book from IVV | S&P 500 |
| Total return, 1 year | +20.0% | +20.1% |
| S&P 500 over the same days | +20.0% | +20.0% |
| Gap to the S&P 500 | +0.0 pts | +0.1 pts |
| Expense ratio | not published | 0.03% |
| Already in the S&P 500 | 100.0% | 100.0% |
| Holdings | 504 | 506 |
SPY in plain words
SPY is a index equity fund tracking S&P 500, book from IVV. Over the year to Sep 4, 2026 it returned +20.0% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 36.4%.
VOO in plain words
VOO is a index equity fund tracking S&P 500. Over the year to Sep 4, 2026 it returned +20.1% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 506 positions, with the top ten at 36.5%.
Questions people ask
- Which returned more over the last year, SPY or VOO?
- In the year to Sep 4, 2026, with distributions reinvested, SPY returned +20.0% and VOO returned +20.1%, so VOO returned more. One year is one year; the longer windows are in the table.
- How much do SPY and VOO overlap with the S&P 500?
- By their latest filed holdings, 100% of SPY and 100% of VOO by weight is stocks the S&P 500 already holds. Between the two funds, 97% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, SPY against VOO, data as of Sep 4, 2026. https://etfiq.com/compare/any/SPY-VOO.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources