Data as of .
DRAM vs SOXX: which is really different?
SOXX holds 73.8% of its weight in S&P 500 companies and DRAM 20.0%.
ETFIQ Off-Index Score: DRAM scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 371 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
What they hold in common
By the books each fund has filed, DRAM and SOXX hold 0% of their money in the same securities at the same weight.
| Only in DRAM | Only in SOXX |
|---|---|
| TREASURY BILL 27.17% | NVIDIA 9.22% |
| SK hynix Inc 20.19% | MICRON TECHNOLOGY 8.97% |
| Samsung Electronics Co Ltd 18.26% | ADVANCED MICRO DEVICES 8.70% |
| Sandisk Corp 6.62% | BROADCOM INC 7.20% |
| Kioxia Holdings Corp 5.54% | INTEL CORPORATION 5.64% |
| Western Digital Corp 5.46% | MARVELL TECHNOLOGY 4.93% |
| Seagate Technology Holdings PL 5.32% | TAIWAN SEMICONDUCTOR MANUFACTURING 4.74% |
| GigaDevice Semiconductor Inc 3.90% | APPLIED MATERIAL INC 4.50% |
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 Jun 30, 2026 and Sep 10, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| DRAM | SOXX | DRAM | SOXX | DRAM | SOXX | |
| 3 months | −9.1% | −11.6% | −12.4 pts | −14.9 pts | −8.3 pts | −10.8 pts |
| 6 months | not published | +59.3% | not published | +43.2 pts | not published | +38.6 pts |
| 1 year | not published | +107.5% | not published | +90.0 pts | not published | +84.5 pts |
| 3 years | not published | +229.6% | not published | +151.7 pts | not published | +134.5 pts |
| Since launch | +112.9% | +3687.1% | +96.1 pts | +2882.7 pts | +90.6 pts | +2013.2 pts |
| DRAM Roundhill Memory ETF Holds 13 stocks in memory and storage, 20% of its weight in S&P 500 companies | SOXX iShares Semiconductor ETF Holds 32 stocks in semiconductors, 74% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Roundhill | iShares |
| Theme | Memory and storage | Semiconductors |
| In the S&P 500 | 20.0% | 73.8% |
| Active share vs the S&P 500 | 96.8% | 82.3% |
| In the Nasdaq-100 | 20.0% | 65.2% |
| Holdings | 13 | 32 |
| Top ten, share of the fund | 97.3% | 62.2% |
| Expense ratio | 0.65% | 0.33% |
| Fee for the differing part | 0.67% | 0.40% |
| Total return, 1 year | +112.9% (since launch on Apr 2, 2026) | +107.5% |
| vs the S&P 500 | +96.1 pts | +90.0 pts |
| vs the Nasdaq-100 | +90.6 pts | +84.5 pts |
| Below its high | −26.8% | −19.5% |
DRAM in plain words
By weight, 20% of DRAM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 97%. The top ten holdings are 97% of the fund across 13 positions, as filed for Jun 30, 2026. Since it launched on Apr 2, 2026 the fund returned +112.9% with distributions reinvested against +16.8% for the S&P 500, so a holder was ahead by 96.1 pts. It sits 26.8% below its all-time high of Jun 22, 2026.
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 32 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +107.5% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 90.0 pts. It sits 19.5% below its all-time high of Jun 22, 2026.
Questions people ask
- Which is more different from the S&P 500, DRAM or SOXX?
- DRAM has 20% of its weight in S&P 500 names and SOXX has 74%, so DRAM differs more from the index.
- Which is cheaper, DRAM or SOXX?
- DRAM charges 0.65% a year and SOXX charges 0.33%, 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, DRAM against SOXX, data as of Sep 11, 2026. https://etfiq.com/compare/themes/dram-vs-soxx Free to use with attribution; the underlying files are at Open data.