Data as of . Every figure is the themes desk's own, on published data.
SMH vs SOXX
74% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, SMH and SOXX hold 74% of their money in the same securities at the same weight.
| Holding | SMH | SOXX |
|---|---|---|
| NVIDIA Corp | 17.56% | 6.82% |
| Applied Materials Inc | 5.74% | 5.78% |
| Micron Technology Inc | 5.68% | 8.55% |
| Advanced Micro Devices Inc | 5.63% | 8.10% |
| KLA Corp | 5.58% | 5.65% |
| Broadcom Inc | 5.28% | 6.08% |
| Intel Corp | 5.15% | 6.34% |
| Lam Research Corp | 5.32% | 4.90% |
| Marvell Technology Inc | 4.67% | 5.23% |
| Taiwan Semiconductor Manufacturing Co Lt | 9.29% | 4.27% |
| Texas Instruments Inc | 4.17% | 3.51% |
| Analog Devices Inc | 4.00% | 3.45% |
| Only in SMH | Only in SOXX |
|---|---|
| Cadence Design Systems Inc 2.15% | Credo Technology Group Holding Ltd. 2.01% |
| Synopsys Inc 1.79% | Entegris, Inc. 1.22% |
| ASE Technology Holding Co. Ltd. 1.22% | |
| MACOM Technology Solutions Holdings, Inc 1.18% | |
| United Microelectronics Corp. 1.02% | |
| Nova Ltd. 0.77% | |
| Rambus, Inc. 0.64% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings as filed for Jun 30, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| SMH | SOXX | SMH | SOXX | SMH | SOXX | |
| 3 months | −0.5% | −3.6% | −5.2 pts | −8.3 pts | −2.5 pts | −5.7 pts |
| 6 months | +49.0% | +60.9% | +33.8 pts | +45.7 pts | +28.8 pts | +40.7 pts |
| 1 year | +96.2% | +113.9% | +76.3 pts | +93.9 pts | +70.6 pts | +88.3 pts |
| 3 years | +267.0% | +210.8% | +189.0 pts | +132.9 pts | +173.5 pts | +117.4 pts |
| Since launch | +5013.0% | +3635.3% | +4201.6 pts | +2823.9 pts | +3328.9 pts | +1951.2 pts |
| SMH VanEck Semiconductor ETF | SOXX iShares Semiconductor ETF | |
|---|---|---|
| Issuer | VanEck | iShares |
| Theme | Semiconductors | Semiconductors |
| In the S&P 500 | 82.0% | 80.8% |
| Active share vs the S&P 500 | 80.6% | 81.6% |
| In the Nasdaq-100 | 85.9% | 78.4% |
| Holdings | 25 | 30 |
| Top ten, share of the fund | 70.3% | 61.7% |
| Expense ratio | 0.35% | not published |
| Fee for the differing part | 0.43% | not published |
| Total return, 1 year | +96.2% | +113.9% |
| vs the S&P 500 | +76.3 pts | +93.9 pts |
| vs the Nasdaq-100 | +70.6 pts | +88.3 pts |
| Below its high | −15.2% | −20.6% |
SMH in plain words
By weight, 82% of SMH's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 81%. The top ten holdings are 70% of the fund across 25 positions, as filed for Jun 30, 2026. Over the year to Sep 4, 2026 the fund returned +96.2% with distributions reinvested against +20.0% for the S&P 500, so a holder was ahead by 76.3 pts. It sits 15.2% below its all-time high of Jun 22, 2026.
SOXX in plain words
By weight, 81% of SOXX's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 82%. The top ten holdings are 62% of the fund across 30 positions, as filed for Jun 30, 2026. Over the year to Sep 4, 2026 the fund returned +113.9% with distributions reinvested against +20.0% for the S&P 500, so a holder was ahead by 93.9 pts. It sits 20.6% below its all-time high of Jun 22, 2026.
Questions people ask
- Do SMH and SOXX hold the same stocks?
- By their latest filings, 74% of their books are the same securities at the same weight, which is close to holding one of them twice. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, SMH or SOXX?
- SMH has 82% of its weight in S&P 500 names and SOXX has 81%, so SOXX differs more from the index.
Other comparisons
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, SMH against SOXX, data as of Sep 4, 2026. https://etfiq.com/compare/themes/SMH-SOXX.html Free to use with attribution; the underlying files are at Open data.