SOXX vs VGT: how much do they really overlap?
SOXX (iShares Semiconductor ETF, tracking the NYSE Semiconductor) and VGT (Vanguard Information Technology ETF, tracking the MSCI US IMI Info Tech 25/50) overlap by roughly 41% by weight. 9 of SOXX's top 10 holdings also appear in VGT. A 50/50 blend of the two behaves like about 23 equally-weighted bets (diversification grade C). In short, the two funds share a meaningful core of the same megacaps, but each also brings real exposure the other lacks.
The same companies, in both funds
These 16 holdings appear in both SOXX and VGT. The weight columns show how much of each fund each name represents.
| Holding | in SOXX | in VGT |
|---|---|---|
| NVDA NVIDIA CORP | 8.42% | 16.10% |
| MU MICRON TECHNOLOGY INC | 8.21% | 5.04% |
| AVGO BROADCOM INC | 7.91% | 3.84% |
| AMD ADVANCED MICRO DEVICES INC | 8.57% | 3.65% |
| INTC INTEL CORPORATION | 5.24% | 2.41% |
| AMAT APPLIED MATERIAL INC | 5.08% | 2.26% |
| LRCX LAM RESEARCH CORP | 4.27% | 2.14% |
| KLAC KLA CORP | 4.28% | 1.59% |
| TXN TEXAS INSTRUMENT INC | 4.16% | 1.09% |
| MRVL MARVELL TECHNOLOGY INC | 4.08% | 1.05% |
| QCOM QUALCOMM INC | 2.75% | 0.80% |
| ADI ANALOG DEVICES INC | 4.04% | 0.79% |
| TER TERADYNE INC | 3.22% | 0.36% |
| ALAB ASTERA LABS INC | 2.38% | 0.34% |
| NXPI NXP SEMICONDUCTORS NV | 3.48% | 0.32% |
+ 1 more shared holdings.
Only in SOXX
iShares Semiconductor ETF — semiconductors. Its biggest holdings that VGT doesn’t have:
| TSM TAIWAN SEMICONDUCTOR MANUFACTURING | 4.57% |
| ASML ASML HOLDING ADR REPRESENTING NV | 2.43% |
| MCHP MICROCHIP TECHNOLOGY INC | 2.26% |
| CRDO CREDO TECHNOLOGY GROUP HOLDING LTD | 1.89% |
| ON ON SEMICONDUCTOR CORP | 1.85% |
| ASX ASE TECHNOLOGY HOLDING ADR REPRESE | 1.19% |
| ENTG ENTEGRIS INC | 1.01% |
| MTSI MACOM TECHNOLOGY SOLUTIONS INC | 0.97% |
Only in VGT
Vanguard Information Technology ETF — US tech sector. Its biggest holdings that SOXX doesn’t have:
| AAPL Apple Inc. | 14.33% |
| MSFT Microsoft Corp. | 8.28% |
| CSCO Cisco Systems Inc. | 1.82% |
| SNDK Sandisk Corp. | 1.33% |
| PANW Palo Alto Networks Inc. | 1.12% |
| IBM International Business Machines Corp. | 1.03% |
| PLTR Palantir Technologies Inc. Class A | 1.01% |
| ORCL Oracle Corp. | 0.95% |
So — partly overlapping. Should you hold both?
SOXX and VGT share a meaningful core of the same megacaps, but each also brings real exposure the other lacks. Held together they keep a shared megacap core but each still pulls in exposure the other lacks, so a 50/50 blend spreads to ~23 effective positions (grade C).
Holdings as of — SOXX: Jul 30, 2026 (iShares (BlackRock)); VGT: Jun 30, 2026 (Vanguard). 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 →SOXX vs VGT — FAQ
- How much do SOXX and VGT overlap?
- SOXX and VGT overlap by approximately 41% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 9 of SOXX's 10 largest holdings are also held by VGT. They share 16 of their listed top holdings in total.
- Is it redundant to hold both SOXX and VGT?
- Because they share a meaningful core of the same megacaps, but each also brings real exposure the other lacks, holding both is partly redundant: you double up on a shared core (NVDA) while each fund still adds distinct exposure. A 50/50 blend has an effective 23 positions and a C diversification grade.
- What does VGT hold that SOXX doesn't?
- VGT's largest holdings that SOXX doesn't hold include AAPL, MSFT, CSCO, SNDK, PANW. Its category is US tech sector, versus SOXX's semiconductors.
- Which is more concentrated, SOXX or VGT?
- SOXX's top 10 holdings are 61% of its listed weight; VGT's are 71%. The more concentrated fund leans harder on its largest names.