IWR vs QQQ: Holdings Overlap
IWRiShares Russell Mid-Cap ETF
iShares · 806 holdings · $57.6B · as of 2026-03-31
QQQInvesco QQQ Trust, Series 1
Invesco · 101 holdings · $479.2B · as of 2026-03-31
How similar are IWR and QQQ?
iShares Russell Mid-Cap ETF (IWR, by iShares) holds 806 positions; Invesco QQQ Trust, Series 1 (QQQ, by Invesco) holds 101. They have 27 holdings in common, and by portfolio weight the two funds are 6.5% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 6.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 27IWR holds 806 · QQQ holds 101
- Weight in Shared Holdings
- IWR 9%·QQQ 7%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
779 of 806 positions (91.1% of the fund) are not held by QQQ. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWR | QQQ |
|---|---|---|
| Information Technology | 13.0% | 49.7% |
| Industrials | 18.7% | 4.2% |
| Communication Services | 3.6% | 16.0% |
| Financials | 13.6% | 0.2% |
| Consumer Discretionary | 10.8% | 12.6% |
| Other Sectors | 39.9% | 17.2% |
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.
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% |
| QQQ | +1.9% | +18.0% | +27.6% | +25.2% | +15.2% | +20.8% | 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 IWR vs QQQ →
Shared Holdings(27)
The top 10 shared positions account for 53% of the overlap, led by WDC, ROST and WBD.
 WDCWestern Digital Corp. | 0.73% | 0.52% | 0.52% |
|---|---|---|---|
 ROSTRoss Stores, Inc. | 0.55% | 0.40% | 0.40% |
 WBDWarner Bros. Discovery, Inc. | 0.51% | 0.39% | 0.39% |
 BKRBaker Hughes Co., Class A | 0.48% | 0.34% | 0.34% |
 FANGDiamondback Energy, Inc. | 0.31% | 0.32% | 0.31% |
 MPWRMonolithic Power Systems, Inc. | 0.40% | 0.30% | 0.30% |
 FASTFastenal Co. | 0.42% | 0.30% | 0.30% |
 EAElectronic Arts, Inc. | 0.41% | 0.29% | 0.29% |
 EXCExelon Corp. | 0.39% | 0.28% | 0.28% |
 XELXcel Energy, Inc. | 0.37% | 0.28% | 0.28% |
 IDXXIDEXX Laboratories, Inc. | 0.35% | 0.25% | 0.25% |
 ALNYAlnylam Pharmaceuticals, Inc. | 0.33% | 0.25% | 0.25% |
 ODFLOld Dominion Freight Line, Inc. | 0.28% | 0.23% | 0.23% |
 DDOGDatadog, Inc., Class A | 0.29% | 0.22% | 0.22% |
 TTWOTake-Two Interactive Software, Inc. | 0.29% | 0.21% | 0.21% |
 INSMInsmed, Inc. | 0.27% | 0.20% | 0.20% |
 MCHPMicrochip Technology, Inc. | 0.27% | 0.20% | 0.20% |
 AXONAxon Enterprise, Inc. | 0.25% | 0.19% | 0.19% |
 PAYXPaychex, Inc. | 0.24% | 0.19% | 0.19% |
 GEHCGE HealthCare Technologies, Inc. | 0.26% | 0.18% | 0.18% |
 CTSHCognizant Technology Solutions Corp., Class A | 0.23% | 0.17% | 0.17% |
 KHCKraft Heinz Co. (The) | 0.15% | 0.15% | 0.15% |
 VRSKVerisk Analytics, Inc. | 0.21% | 0.15% | 0.15% |
 CHTRCharter Communications, Inc., Class A | 0.14% | 0.15% | 0.14% |
 DXCMDexcom, Inc. | 0.19% | 0.14% | 0.14% |
Frequently Asked Questions
How much do IWR and QQQ overlap?
IWR and QQQ overlap by 6.5% of portfolio weight. They share 27 holdings (IWR holds 806 positions and QQQ holds 101), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWR and QQQ?
The two portfolios are 6.5% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IWR and QQQ?
The largest positions held by both funds are WDC, ROST, WBD, BKR and FANG. Together the top 10 shared positions account for 53% of the total overlap.
What does IWR own that QQQ doesn't?
779 positions (91.1% of IWR) are unique to IWR, led by GLW, VRT and HWM. In the other direction, 74 positions (93.4% of QQQ) are unique to QQQ.