Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IEF vs VOO: how they differ
IEF and VOO hold 0% of their weight in the same names, and VOO returned more over the year.
iShares 7-10 Year Treasury Bond ETF and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, IEF and VOO hold 0% of their money in the same securities at the same weight.
| Only in IEF | Only in VOO |
|---|---|
| United States of America 9.71% | NVIDIA Corp 7.53% |
| United States of America 8.94% | Apple Inc 6.61% |
| United States of America 8.91% | Microsoft Corp 4.31% |
| United States of America 8.89% | Amazon.com Inc 3.63% |
| United States of America 8.87% | Alphabet Inc 3.26% |
| United States of America 8.79% | Broadcom Inc 2.78% |
| United States of America 8.69% | Alphabet Inc 2.60% |
| United States of America 8.46% | Micron Technology Inc 2.02% |
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 dated Jun 30, 2026 and May 31, 2026.
| IEF iShares 7-10 Year Treasury Bond ETF | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | 7-10 Year Treasury Bond | S&P 500 |
| Total return, 1 year | −2.7% | +17.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −20.2 pts | +0.1 pts |
| Expense ratio | 0.15% | 0.03% |
| Holdings | 15 | 506 |
IEF in plain words
IEF is a bond fund tracking the 7-10 Year Treasury Bond. Over the year to Sep 11, 2026 it returned −2.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. It sat 13.3% below its high of Aug 4, 2020 on Sep 11, 2026.
VOO in plain words
VOO is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% 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, IEF or VOO?
- In the year to Sep 12, 2026, with distributions reinvested, IEF returned −2.7% and VOO returned +17.6%, so VOO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IEF or VOO?
- IEF charges 0.15% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
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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, IEF against VOO, data as of Sep 12, 2026. https://etfiq.com/compare/any/IEF-VOO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources