Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
IJR vs VOO
iShares Core S&P Small-Cap ETF and Vanguard 500 Index Fund.
What they hold in common
By the books each fund has filed, IJR and VOO hold 0% of their money in the same securities at the same weight.
| Holding | IJR | VOO |
|---|---|---|
| CONAGRA BRANDS INC | 0.35% | 0.01% |
| Only in IJR | Only in VOO |
|---|---|
| FORMFACTOR INC 0.69% | NVIDIA Corp 7.53% |
| VIASAT INC 0.68% | Apple Inc 6.61% |
| MOLINA HEALTHCARE INC 0.66% | Microsoft Corp 4.31% |
| ARGAN INC 0.62% | Amazon.com Inc 3.63% |
| BRIGHTSPRING HEALTH SERVICES INC 0.61% | Alphabet Inc 3.26% |
| ELEMENT SOLUTIONS INC 0.61% | Broadcom Inc 2.78% |
| MAXLINEAR INC 0.60% | Alphabet Inc 2.60% |
| KRYSTAL BIOTECH INC 0.54% | 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 as filed for Jun 30, 2026.
| IJR iShares Core S&P Small-Cap ETF | VOO Vanguard 500 Index Fund | |
|---|---|---|
| Where it sits | Core fund | Core fund |
| Issuer | iShares | Vanguard |
| What it is | S&P SmallCap 600 | S&P 500 |
| Total return, 1 year | +24.0% | +20.1% |
| S&P 500 over the same days | +20.0% | +20.0% |
| Gap to the S&P 500 | +4.0 pts | +0.1 pts |
| Expense ratio | 0.06% | 0.03% |
| Already in the S&P 500 | 0.0% | 100.0% |
| Holdings | 603 | 506 |
IJR in plain words
IJR is a index equity fund tracking S&P SmallCap 600. Over the year to Sep 4, 2026 it returned +24.0% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 603 positions, with the top ten at 6.0%. It sat 3.4% below its high of Aug 14, 2026 on Sep 4, 2026.
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, IJR or VOO?
- In the year to Sep 4, 2026, with distributions reinvested, IJR returned +24.0% and VOO returned +20.1%, so IJR returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IJR or VOO?
- IJR charges 0.06% a year and VOO charges 0.03%, so VOO is cheaper. Fees come from each fund's prospectus.
- How much do IJR and VOO overlap with the S&P 500?
- By their latest filed holdings, 0% of IJR and 100% of VOO by weight is stocks the S&P 500 already holds. Between the two funds, 0% 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, IJR against VOO, data as of Sep 4, 2026. https://etfiq.com/compare/any/IJR-VOO.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources