IWR vs IJR: Holdings Overlap
IWRiShares Russell Mid-Cap ETF
iShares · 806 holdings · $57.6B · as of 2026-03-31
IJRiShares Core S&P Small-Cap ETF
iShares · 605 holdings · $113.4B · as of 2026-03-31
How similar are IWR and IJR?
iShares Russell Mid-Cap ETF (IWR, by iShares) holds 806 positions; iShares Core S&P Small-Cap ETF (IJR, by iShares) holds 605. They have 67 holdings in common, and by portfolio weight the two funds are 2.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 67IWR holds 806 · IJR holds 605
- Weight in Shared Holdings
- IWR 2%·IJR 17%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IWR
739 of 806 positions (97.7% of the fund) are not held by IJR. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWR | IJR |
|---|---|---|
| Industrials | 18.7% | 17.1% |
| Financials | 13.6% | 17.4% |
| Consumer Discretionary | 10.8% | 13.2% |
| Information Technology | 13.0% | 12.7% |
| Health Care | 9.2% | 11.1% |
| Other Sectors | 34.3% | 26.0% |
| Unclassified | 0.1% | 0.9% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (0% of IWR, 1% of IJR).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWR | +2.9% | +18.1% | +23.0% | +16.4% | +8.5% | +11.6% | 1.12% |
| IJR | +2.4% | +24.5% | +36.4% | +14.5% | +7.7% | +10.9% | 1.10% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IWR vs IJR →
Shared Holdings(67)
The top 10 shared positions account for 28% of the overlap, led by EMN, ESI and LKQ.
 EMNEastman Chemical Company COM | 0.07% | 0.57% | 0.07% |
|---|---|---|---|
 ESIElement Solutions Inc COM | 0.06% | 0.51% | 0.06% |
 LKQLKQ Corporation COM | 0.06% | 0.49% | 0.06% |
 MTCHMatch Group Inc COM | 0.06% | 0.47% | 0.06% |
 CECelanese Corporation COM | 0.06% | 0.47% | 0.06% |
 AWIArmstrong World Industries, Inc. COM | 0.06% | 0.46% | 0.06% |
 MOHMolina Healthcare, Inc. COM | 0.05% | 0.45% | 0.05% |
 AVLAAir Lease Corporation CL A | 0.05% | 0.45% | 0.05% |
 QRVOQorvo Inc COM | 0.05% | 0.43% | 0.05% |
 SDASealed Air Corp. COM | 0.05% | 0.40% | 0.05% |
 PAYCPaycom Software Inc COM | 0.05% | 0.39% | 0.05% |
 ECGEverus Construction Group Inc. COM | 0.05% | 0.39% | 0.05% |
 KMXCarmax Inc COM | 0.05% | 0.38% | 0.05% |
| Gates Industrial Corp PLC COM USD0.01 | 0.05% | 0.37% | 0.05% |
 LWLamb Weston Holdings Inc COM | 0.05% | 0.38% | 0.05% |
 MKTXMarketAxess Holdings Inc. COM | 0.04% | 0.38% | 0.04% |
 CZRCaesars Entertainment Inc. COM | 0.04% | 0.35% | 0.04% |
 TFXTeleflex Incorporated COM | 0.04% | 0.35% | 0.04% |
 RITMRithm Capital Corp. COM NEW | 0.04% | 0.34% | 0.04% |
 MSGSMadison Square Garden Sports Corp. CL A | 0.04% | 0.38% | 0.04% |
 LYFTLyft, Inc., Class A | 0.04% | 0.35% | 0.04% |
 MHKMohawk Industries, Inc. COM | 0.04% | 0.33% | 0.04% |
 ENPHEnphase Energy Inc COM | 0.04% | 0.32% | 0.04% |
 RALRalliant Corp. COM | 0.04% | 0.31% | 0.04% |
 ETSYEtsy Inc COM | 0.04% | 0.32% | 0.04% |
Frequently Asked Questions
How much do IWR and IJR overlap?
IWR and IJR overlap by 2.0% of portfolio weight. They share 67 holdings (IWR holds 806 positions and IJR holds 605), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWR and IJR?
The two portfolios are 2.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IWR and IJR?
The largest positions held by both funds are EMN, ESI, LKQ, MTCH and CE. Together the top 10 shared positions account for 28% of the total overlap.
What does IWR own that IJR doesn't?
739 positions (97.7% of IWR) are unique to IWR, led by GLW, VRT and HWM. In the other direction, 538 positions (81.8% of IJR) are unique to IJR.