IWS vs QQQ: Holdings Overlap
IWSiShares Russell Mid-Cap Value ETF
iShares · 712 holdings · $15.9B · as of 2026-03-31
QQQInvesco QQQ Trust, Series 1
Invesco · 101 holdings · $479.2B · as of 2026-03-31
How similar are IWS and QQQ?
iShares Russell Mid-Cap Value ETF (IWS, by iShares) holds 712 positions; Invesco QQQ Trust, Series 1 (QQQ, by Invesco) holds 101. They have 20 holdings in common, and by portfolio weight the two funds are 4.6% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 20IWS holds 712 · QQQ holds 101
- Weight in Shared Holdings
- IWS 7%·QQQ 5%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 IWS
692 of 712 positions (92.5% of the fund) are not held by QQQ. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWS | QQQ |
|---|---|---|
| Information Technology | 12.3% | 49.7% |
| Industrials | 17.1% | 4.2% |
| Communication Services | 3.2% | 16.0% |
| Financials | 15.1% | 0.2% |
| Consumer Discretionary | 7.8% | 12.6% |
| Other Sectors | 44.0% | 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 |
|---|---|---|---|---|---|---|---|
| IWS | +3.3% | +22.1% | +29.8% | +16.6% | +9.8% | +10.4% | 1.27% |
| 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 IWS vs QQQ →
Shared Holdings(20)
The top 10 shared positions account for 70% of the overlap, led by WDC, ROST and WBD.
 WDCWestern Digital Corp. COM | 0.94% | 0.52% | 0.52% |
|---|---|---|---|
 ROSTRoss Stores Inc COM | 0.56% | 0.40% | 0.40% |
 WBDWarner Bros. Discovery Inc. COM SER A | 0.65% | 0.39% | 0.39% |
 BKRBaker Hughes Company CL A | 0.62% | 0.34% | 0.34% |
 FANGDiamondback Energy Inc COM | 0.40% | 0.32% | 0.32% |
 EAElectronic Arts Inc. COM | 0.52% | 0.29% | 0.29% |
 EXCExelon Corp. COM | 0.50% | 0.28% | 0.28% |
 XELXcel Energy Inc COM | 0.48% | 0.28% | 0.28% |
 ODFLOld Dominion Freight Line Inc. COM | 0.34% | 0.23% | 0.23% |
 TTWOTake-Two Interactive Software Inc. COM | 0.24% | 0.21% | 0.21% |
 MCHPMicrochip Technology Incorporated COM | 0.35% | 0.20% | 0.20% |
 PAYXPaychex Inc COM | 0.21% | 0.19% | 0.19% |
 GEHCGE Healthcare Technologies Inc. COMMON STOCK | 0.33% | 0.18% | 0.18% |
 CTSHCognizant Technology Solutions Corp., Class A | 0.30% | 0.17% | 0.17% |
 CHTRCharter Communications, Inc., Class A | 0.18% | 0.15% | 0.15% |
 KHCThe Kraft Heinz Co. COM | 0.20% | 0.15% | 0.15% |
 VRSKVerisk Analytics, Inc. COM | 0.11% | 0.15% | 0.11% |
 FASTFastenal Co. COM | 0.10% | 0.30% | 0.10% |
 CSGPCostar Group Inc COM | 0.15% | 0.10% | 0.10% |
 INSMInsmed Inc COM PAR $.01 | 0.02% | 0.20% | 0.02% |
Frequently Asked Questions
How much do IWS and QQQ overlap?
IWS and QQQ overlap by 4.6% of portfolio weight. They share 20 holdings (IWS holds 712 positions and QQQ holds 101), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWS and QQQ?
The two portfolios are 4.6% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IWS and QQQ?
The largest positions held by both funds are WDC, ROST, WBD, BKR and FANG. Together the top 10 shared positions account for 70% of the total overlap.
What does IWS own that QQQ doesn't?
692 positions (92.5% of IWS) are unique to IWS, led by GLW, SNDK and BNY. In the other direction, 81 positions (94.9% of QQQ) are unique to QQQ.