IJH vs SOXQ: how much do they really overlap?
IJH (iShares Core S&P Mid-Cap ETF, tracking the S&P MidCap 400) and SOXQ (Invesco PHLX Semiconductor ETF, tracking the PHLX Semiconductor) overlap by roughly 2% by weight. 0 of IJH's top 10 holdings also appear in SOXQ. A 50/50 blend of the two behaves like about 75 equally-weighted bets (diversification grade A). In short, the two funds hold almost none of the same securities — they are complementary, not redundant.
The same companies, in both funds
These 1 holdings appear in both IJH and SOXQ. The weight columns show how much of each fund each name represents.
| Holding | in IJH | in SOXQ |
|---|---|---|
| MTSI MACOM TECHNOLOGY SOLUTIONS INC | 0.68% | 1.02% |
Only in IJH
iShares Core S&P Mid-Cap ETF — US mid-cap. Its biggest holdings that SOXQ doesn’t have:
| TWLO TWILIO INC CLASS A | 0.86% |
| CRS CARPENTER TECHNOLOGY CORP | 0.84% |
| MKSI MKS | 0.82% |
| CW CURTISS WRIGHT CORP | 0.77% |
| NVT NVENT ELECTRIC PLC | 0.75% |
| ENTG ENTEGRIS INC | 0.75% |
| ATI ATI INC | 0.74% |
| ILMN ILLUMINA INC | 0.73% |
Only in SOXQ
Invesco PHLX Semiconductor ETF — semiconductors. Its biggest holdings that IJH doesn’t have:
| NVDA NVIDIA Corporation | 10.47% |
| MU Micron Technology, Inc. | 8.91% |
| AVGO Broadcom Inc. | 7.87% |
| AMAT Applied Materials, Inc. | 5.83% |
| KLAC KLA Corporation | 5.47% |
| MRVL Marvell Technology, Inc. | 5.12% |
| LRCX Lam Research Corporation | 4.88% |
| ASML ASML Holding N.V. | 4.41% |
So — essentially different. Should you hold both?
IJH and SOXQ hold almost none of the same securities — they are complementary, not redundant. Held together they genuinely broaden your exposure — a 50/50 blend reaches ~75 effective positions (grade A), because they hold largely different securities.
Holdings as of — IJH: Jun 30, 2026 (iShares (BlackRock)); SOXQ: Jun 29, 2026 (Invesco). Refreshed monthly. Overlap is measured across each fund’s largest holdings (top 50); the diffuse long tail barely moves the math.
See this for YOUR whole portfolio, free →IJH vs SOXQ — FAQ
- How much do IJH and SOXQ overlap?
- IJH and SOXQ overlap by approximately 2% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 0 of IJH's 10 largest holdings are also held by SOXQ. They share 1 of their listed top holdings in total.
- Is it redundant to hold both IJH and SOXQ?
- Because they hold almost none of the same securities — they are complementary, not redundant, holding both is not redundant — each fund covers largely different holdings, so together they broaden your exposure. A 50/50 blend has an effective 75 positions and a A diversification grade.
- What does SOXQ hold that IJH doesn't?
- SOXQ's largest holdings that IJH doesn't hold include NVDA, MU, AVGO, AMAT, KLAC. Its category is semiconductors, versus IJH's US mid-cap.
- Which is more concentrated, IJH or SOXQ?
- IJH's top 10 holdings are 27% of its listed weight; SOXQ's are 63%. The more concentrated fund leans harder on its largest names.