Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IJR vs IWM: how they differ
IJR and IWM hold 47% of their weight in the same names, and IWM returned more over the year.
iShares Core S&P Small-Cap ETF and iShares Russell 2000 ETF.
What they hold in common
By the books each fund has filed, IJR and IWM hold 47% of their money in the same securities at the same weight.
| Holding | IJR | IWM |
|---|---|---|
| GLAUKOS | 0.57% | 0.32% |
| BRINKER INTERNATIONAL INC | 0.52% | 0.31% |
| SM ENERGY | 0.49% | 0.31% |
| VIASAT INC | 0.57% | 0.31% |
| BLK CSH FND TREASURY SL AGENCY | 1.94% | 0.29% |
| PROTAGONIST THERAPEUTICS | 0.50% | 0.29% |
| RYMAN HOSPITALITY PROPERTIES REIT | 0.47% | 0.27% |
| TG THERAPEUTICS | 0.42% | 0.26% |
| ALKERMES | 0.44% | 0.25% |
| STONEX GROUP INC | 0.42% | 0.25% |
| ARCOSA | 0.41% | 0.24% |
| ESCO TECHNOLOGIES | 0.39% | 0.23% |
| Only in IJR | Only in IWM |
|---|---|
| CORCEPT THERAPEUTICS 0.62% | MOOG INC CLASS A 0.34% |
| MATCH GROUP INC 0.56% | UMB FINANCIAL 0.34% |
| QORVO 0.51% | CYTOKINETICS 0.32% |
| PAYCOM SOFTWARE 0.51% | JFROG 0.32% |
| FORMFACTOR INC 0.50% | BRIGHTSPRING HEALTH SERVICES INC 0.31% |
| CARMAX INC 0.49% | FIRSTCASH HOLDINGS INC 0.31% |
| ELEMENT SOLUTIONS INC 0.45% | HUT CORP 0.31% |
| EASTMAN CHEMICAL 0.45% | INTERDIGITAL INC 0.30% |
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 Sep 10, 2026.
| IJR iShares Core S&P Small-Cap ETF | IWM iShares Russell 2000 ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | S&P SmallCap 600 | Russell 2000 |
| Total return, 1 year | +19.9% | +21.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +2.4 pts | +3.7 pts |
| Expense ratio | 0.06% | 0.19% |
| Already in the S&P 500 | 0.0% | 0.0% |
| Holdings | 608 | 1749 |
IJR in plain words
IJR is an index equity fund tracking the S&P SmallCap 600. Over the year to Sep 11, 2026 it returned +19.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 608 positions, with the top ten at 6.8%. It sat 5.5% below its high of Aug 14, 2026 on Sep 11, 2026.
IWM in plain words
IWM is an index equity fund tracking the Russell 2000. Over the year to Sep 11, 2026 it returned +21.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.19% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1749 positions, with the top ten at 3.2%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IJR or IWM?
- In the year to Sep 13, 2026, with distributions reinvested, IJR returned +19.9% and IWM returned +21.2%, so IWM returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IJR or IWM?
- IJR charges 0.06% a year and IWM charges 0.19%, so IJR is cheaper. Fees come from each fund's prospectus.
- How much do IJR and IWM overlap with the S&P 500?
- By their latest filed holdings, 0% of IJR and 0% of IWM by weight is stocks the S&P 500 already holds. Between the two funds, 47% of their books are the same securities at the same weight.
Other comparisons
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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 IWM, data as of Sep 13, 2026. https://etfiq.com/compare/any/ijr-vs-iwm Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources