Data as of .
SOXX vs XSD: which is really different?
SOXX and XSD hold 38% of their weight in the same names, and SOXX returned more over the year.
ETFIQ Off-Index Score: XSD scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 379 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it · How it is computed
38% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, SOXX and XSD hold 38% of their money in the same securities at the same weight.
| Holding | SOXX | XSD |
|---|---|---|
| ADVANCED MICRO DEVICES | 9.37% | 3.23% |
| NVIDIA | 9.21% | 2.94% |
| MICRON TECHNOLOGY | 8.93% | 2.94% |
| INTEL CORPORATION | 6.09% | 2.72% |
| QUALCOMM | 3.33% | 2.65% |
| MARVELL TECHNOLOGY | 5.21% | 2.55% |
| BROADCOM INC | 6.90% | 2.50% |
| ANALOG DEVICES | 3.89% | 2.48% |
| TEXAS INSTRUMENT INC | 3.75% | 2.45% |
| ASTERA LABS | 2.27% | 2.38% |
| NXP SEMICONDUCTORS NV | 3.15% | 2.14% |
| MONOLITHIC POWER SYSTEMS INC | 3.06% | 2.13% |
| Only in SOXX | Only in XSD |
|---|---|
| TAIWAN SEMICONDUCTOR MANUFACTURING 4.74% | IMPINJ INC 3.93% |
| APPLIED MATERIAL INC 4.11% | QORVO INC 3.37% |
| KLA 3.90% | SEMTECH CORP 3.10% |
| LAM RESEARCH 3.75% | AMBARELLA INC 2.87% |
| TERADYNE 3.03% | MAXLINEAR INC 2.79% |
| ASML HOLDING ADR REPRESENTING 2.33% | SILICON LABORATORIES INC 2.70% |
| ASE TECHNOLOGY HOLDING ADR REPRESE 1.33% | DIODES INC 2.42% |
| ENTEGRIS INC 1.13% | SITIME CORP 2.42% |
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 dated Sep 17, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| SOXX | XSD | SOXX | XSD | SOXX | XSD | |
| 3 months | −16.6% | −20.4% | −18.8 pts | −22.6 pts | −14.1 pts | −17.9 pts |
| 6 months | +60.5% | +57.2% | +42.5 pts | +39.2 pts | +36.3 pts | +33.0 pts |
| 1 year | +99.9% | +58.2% | +83.3 pts | +41.7 pts | +78.1 pts | +36.5 pts |
| 3 years | +241.0% | +158.3% | +162.6 pts | +79.9 pts | +142.8 pts | +60.1 pts |
| Since launch | +3732.7% | +2210.2% | +2929.2 pts | +1406.7 pts | +2042.5 pts | +520.0 pts |
| SOXX iShares Semiconductor ETF Holds 34 stocks in semiconductors, 74% of its weight in S&P 500 companies | XSD State Street(R) SPDR(R) S&P(R) Semiconductor ETF Holds 48 stocks in semiconductors, 38% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | iShares | State Street |
| Theme | Semiconductors | Semiconductors |
| In the S&P 500 | 74.1% | 38.2% |
| Active share vs the S&P 500 | 82.3% | 88.2% |
| In the Nasdaq-100 | 65.7% | 30.9% |
| Holdings | 34 | 48 |
| Top ten, share of the fund | 62.3% | 31.4% |
| Expense ratio | 0.33% | 0.35% |
| Fee for the differing part | 0.40% | 0.40% |
| Total return, 1 year | +99.9% | +58.2% |
| vs the S&P 500 | +83.3 pts | +41.7 pts |
| vs the Nasdaq-100 | +78.1 pts | +36.5 pts |
| Below its high | −18.6% | −22.0% |
| Net assets | $45.4bn | $3.0bn |
SOXX in plain words
By weight, 74% 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 34 positions, as published by its issuer for Sep 17, 2026. Over the year to Sep 18, 2026 the fund returned +99.9% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 83.3 pts. It sits 18.6% below its all-time high of Jun 22, 2026.
XSD in plain words
By weight, 38% of XSD's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 88%. The top ten holdings are 31% of the fund across 48 positions, as published by its issuer for Sep 17, 2026. Over the year to Sep 18, 2026 the fund returned +58.2% with distributions reinvested against +16.6% for the S&P 500, so a holder was ahead by 41.7 pts. It sits 22.0% below its all-time high of Jun 3, 2026.
Questions people ask
- Do SOXX and XSD hold the same stocks?
- By their latest filings, 38% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, SOXX or XSD?
- SOXX has 74% of its weight in S&P 500 names and XSD has 38%, so XSD differs more from the index.
- Which is cheaper, SOXX or XSD?
- SOXX charges 0.33% a year and XSD charges 0.35%, so SOXX is cheaper. Fees come from each fund's prospectus.
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, SOXX against XSD, data as of Sep 18, 2026. https://etfiq.com/compare/themes/soxx-vs-xsd Free to use with attribution; the underlying files are at Open data.