IJJ vs IWO: Holdings Overlap
IJJiShares S&P Mid-Cap 400 Value ETF
iShares · 301 holdings · $9.0B · as of 2026-03-31
IWOiShares Russell 2000 Growth ETF
iShares · 1101 holdings · $14.8B · as of 2026-03-31
How similar are IJJ and IWO?
iShares S&P Mid-Cap 400 Value ETF (IJJ, by iShares) holds 301 positions; iShares Russell 2000 Growth ETF (IWO, by iShares) holds 1101. They have 29 holdings in common, and by portfolio weight the two funds are 3.4% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 29IJJ holds 301 · IWO holds 1101
- Weight in Shared Holdings
- IJJ 6%·IWO 6%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 IJJ
272 of 301 positions (93.0% of the fund) are not held by IWO. Showing the top 30 by weight.
Only in IWO
1072 of 1101 positions (93.9% of the fund) are not held by IJJ. Showing the top 30 by weight.
Sector Breakdown
| Sector | IJJ | IWO |
|---|---|---|
| Industrials | 19.0% | 23.7% |
| Health Care | 3.2% | 23.1% |
| Financials | 22.4% | 8.6% |
| Information Technology | 7.0% | 19.0% |
| Consumer Discretionary | 12.4% | 7.3% |
| Other Sectors | 35.1% | 14.1% |
| Unclassified | 0.0% | 4.0% |
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 IJJ, 4% of IWO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IJJ | +3.0% | +15.1% | +23.8% | +12.8% | +9.2% | +10.5% | 1.56% |
| IWO | +1.2% | +21.0% | +34.7% | +17.5% | +5.9% | +11.0% | 0.42% |
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 IJJ vs IWO →
Shared Holdings(29)
The top 10 shared positions account for 63% of the overlap, led by NXT, SIGI and CBT.
 NXTNextpower, Inc., Class A | 0.40% | 0.94% | 0.40% |
|---|---|---|---|
 SIGISelective Insurance Group, Inc. | 0.29% | 0.27% | 0.27% |
 CBTCabot Corp. | 0.25% | 0.25% | 0.25% |
 SLABSilicon Laboratories, Inc. | 0.21% | 0.46% | 0.21% |
 AHRAmerican Healthcare REIT, Inc. | 0.21% | 0.20% | 0.20% |
 TEXTerex Corp. | 0.43% | 0.19% | 0.19% |
 KNFKnife River Corp. | 0.18% | 0.31% | 0.18% |
 ANFAbercrombie & Fitch Co., Class A | 0.16% | 0.28% | 0.16% |
 BDCBelden, Inc. | 0.15% | 0.30% | 0.15% |
 NOVTNovanta, Inc. | 0.14% | 0.29% | 0.14% |
 FFINFirst Financial Bankshares, Inc. | 0.14% | 0.27% | 0.14% |
 MMSMaximus, Inc. | 0.10% | 0.24% | 0.10% |
 LNTHLantheus Holdings, Inc. | 0.10% | 0.33% | 0.10% |
 EXPOExponent, Inc. | 0.10% | 0.22% | 0.10% |
 VLYValley National Bancorp | 0.37% | 0.10% | 0.10% |
 MZTIMarzetti Co. (The) | 0.09% | 0.19% | 0.09% |
 CVLTCommvault Systems, Inc. | 0.08% | 0.23% | 0.08% |
 BCOBrink's Co. (The) | 0.08% | 0.29% | 0.08% |
 GBCIGlacier Bancorp, Inc. | 0.37% | 0.08% | 0.08% |
 HAEHaemonetics Corp. | 0.07% | 0.18% | 0.07% |
 ONBOld National Bancorp | 0.49% | 0.06% | 0.06% |
 CYTKCytokinetics, Inc. | 0.24% | 0.06% | 0.06% |
 UMBFUMB Financial Corp. | 0.51% | 0.05% | 0.05% |
 BLKBBlackbaud, Inc. | 0.04% | 0.08% | 0.04% |
 TCBITexas Capital Bancshares, Inc. | 0.14% | 0.04% | 0.04% |
Frequently Asked Questions
How much do IJJ and IWO overlap?
IJJ and IWO overlap by 3.4% of portfolio weight. They share 29 holdings (IJJ holds 301 positions and IWO holds 1101), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IJJ and IWO?
The two portfolios are 3.4% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IJJ and IWO?
The largest positions held by both funds are NXT, SIGI, CBT, SLAB and AHR. Together the top 10 shared positions account for 63% of the total overlap.
What does IJJ own that IWO doesn't?
272 positions (93.0% of IJJ) are unique to IJJ, led by USFD, AA and OVV. In the other direction, 1072 positions (93.9% of IWO) are unique to IWO.