IJR vs SOXQ: how much do they really overlap?
IJR (iShares Core S&P Small-Cap ETF, tracking the S&P SmallCap 600) and SOXQ (Invesco PHLX Semiconductor ETF, tracking the PHLX Semiconductor) overlap by roughly 0% by weight. 0 of IJR'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 0 holdings appear in both IJR and SOXQ. The weight columns show how much of each fund each name represents.
| Holding | in IJR | in SOXQ |
|---|
Only in IJR
iShares Core S&P Small-Cap ETF — US small-cap. Its biggest holdings that SOXQ doesn’t have:
| XTSLA BLK CSH FND TREASURY SL AGENCY | 1.96% |
| FORM FORMFACTOR INC | 0.67% |
| VSAT VIASAT INC | 0.66% |
| MOH MOLINA HEALTHCARE INC | 0.65% |
| AGX ARGAN INC | 0.60% |
| BTSG BRIGHTSPRING HEALTH SERVICES INC | 0.60% |
| ESI ELEMENT SOLUTIONS INC | 0.59% |
| MXL MAXLINEAR INC | 0.58% |
Only in SOXQ
Invesco PHLX Semiconductor ETF — semiconductors. Its biggest holdings that IJR 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?
IJR 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 — IJR: 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 →IJR vs SOXQ — FAQ
- How much do IJR and SOXQ overlap?
- IJR and SOXQ overlap by approximately 0% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 0 of IJR's 10 largest holdings are also held by SOXQ. They share 0 of their listed top holdings in total.
- Is it redundant to hold both IJR 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 IJR doesn't?
- SOXQ's largest holdings that IJR doesn't hold include NVDA, MU, AVGO, AMAT, KLAC. Its category is semiconductors, versus IJR's US small-cap.
- Which is more concentrated, IJR or SOXQ?
- IJR's top 10 holdings are 31% of its listed weight; SOXQ's are 63%. The more concentrated fund leans harder on its largest names.