Data as of . Every figure is the themes desk's own, on published data.
SOXX vs TAN
0% 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 TAN hold 0% of their money in the same securities at the same weight.
| Only in SOXX | Only in TAN |
|---|---|
| Micron Technology, Inc. 8.55% | First Solar, Inc. 11.74% |
| Advanced Micro Devices, Inc. 8.10% | Nextpower Inc. 9.81% |
| NVIDIA Corp. 6.82% | Enphase Energy, Inc. 8.75% |
| Intel Corp. 6.34% | Enlight Renewable Energy Ltd. 7.58% |
| Broadcom, Inc. 6.08% | SolarEdge Technologies, Inc. 6.32% |
| Applied Materials, Inc. 5.78% | Doral Group Renewable Energy Resources L 5.09% |
| KLA Corp. 5.65% | Sunrun Inc. 4.83% |
| Marvell Technology, Inc. 5.23% | O.Y. Nofar Energy Ltd. 4.21% |
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 and May 31, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| SOXX | TAN | SOXX | TAN | SOXX | TAN | |
| 3 months | −3.6% | −25.0% | −8.3 pts | −29.7 pts | −5.7 pts | −27.1 pts |
| 6 months | +60.9% | −9.8% | +45.7 pts | −25.0 pts | +40.7 pts | −30.0 pts |
| 1 year | +113.9% | +14.3% | +93.9 pts | −5.6 pts | +88.3 pts | −11.3 pts |
| 3 years | +210.8% | −16.7% | +132.9 pts | −94.7 pts | +117.4 pts | −110.2 pts |
| Since launch | +3635.3% | −38.6% | +2823.9 pts | −850.0 pts | +1951.2 pts | −1722.7 pts |
| SOXX iShares Semiconductor ETF | TAN Invesco Solar ETF | |
|---|---|---|
| Issuer | iShares | Invesco |
| Theme | Semiconductors | Clean energy |
| In the S&P 500 | 80.8% | 11.7% |
| Active share vs the S&P 500 | 81.6% | 100.0% |
| In the Nasdaq-100 | 78.4% | 0.0% |
| Holdings | 30 | 31 |
| Top ten, share of the fund | 61.7% | 65.2% |
| Expense ratio | not published | 0.70% |
| Fee for the differing part | not published | 0.70% |
| Total return, 1 year | +113.9% | +14.3% |
| vs the S&P 500 | +93.9 pts | −5.6 pts |
| vs the Nasdaq-100 | +88.3 pts | −11.3 pts |
| Below its high | −20.6% | −60.4% |
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.
TAN in plain words
By weight, 12% of TAN's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 65% of the fund across 31 positions, as filed for May 31, 2026. Over the year to Sep 4, 2026 the fund returned +14.3% with distributions reinvested against +20.0% for the S&P 500, so a holder was behind by 5.6 pts. It sits 60.4% below its all-time high of Feb 9, 2021.
Questions people ask
- Do SOXX and TAN hold the same stocks?
- By their latest filings, 0% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
- Which is more different from the S&P 500, SOXX or TAN?
- SOXX has 81% of its weight in S&P 500 names and TAN has 12%, so TAN 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, SOXX against TAN, data as of Sep 4, 2026. https://etfiq.com/compare/themes/SOXX-TAN.html Free to use with attribution; the underlying files are at Open data.