Data as of .
DRAM vs QTUM: which is really different?
QTUM holds 34.8% 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 QTUM hold 1% of their money in the same securities at the same weight.
| Holding | DRAM | QTUM |
|---|---|---|
| Micron Technology Inc | 2.58% | 1.30% |
| Only in DRAM | Only in QTUM |
|---|---|
| TREASURY BILL 27.17% | Arqit Quantum Inc 1.82% |
| SK hynix Inc 20.19% | Global Unichip Corp 1.82% |
| Samsung Electronics Co Ltd 18.26% | Horizon Quantum Holdings Ltd 1.81% |
| Sandisk Corp 6.62% | Cloudflare Inc 1.66% |
| Kioxia Holdings Corp 5.54% | Elastic Nv 1.63% |
| Western Digital Corp 5.46% | Snowflake Inc 1.63% |
| Seagate Technology Holdings PL 5.32% | Hewlett Packard Enterprise Co 1.62% |
| GigaDevice Semiconductor Inc 3.90% | Nutanix Inc 1.58% |
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 14, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| DRAM | QTUM | DRAM | QTUM | DRAM | QTUM | |
| 3 months | −9.1% | −8.5% | −12.4 pts | −11.8 pts | −8.3 pts | −7.7 pts |
| 6 months | not published | +35.3% | not published | +19.3 pts | not published | +14.6 pts |
| 1 year | not published | +50.4% | not published | +32.9 pts | not published | +27.4 pts |
| 3 years | not published | +204.4% | not published | +126.5 pts | not published | +109.3 pts |
| Since launch | +112.9% | +536.1% | +96.1 pts | +337.3 pts | +90.6 pts | +225.6 pts |
| DRAM Roundhill Memory ETF Holds 13 stocks in memory and storage, 20% of its weight in S&P 500 companies | QTUM Defiance Quantum ETF Holds 89 stocks in quantum computing, 35% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Roundhill | Defiance |
| Theme | Memory and storage | Quantum computing |
| In the S&P 500 | 20.0% | 34.8% |
| Active share vs the S&P 500 | 96.8% | 82.6% |
| In the Nasdaq-100 | 20.0% | 27.2% |
| Holdings | 13 | 89 |
| Top ten, share of the fund | 97.3% | 16.6% |
| Expense ratio | 0.65% | 0.40% |
| Fee for the differing part | 0.67% | 0.48% |
| Total return, 1 year | +112.9% (since launch on Apr 2, 2026) | +50.4% |
| vs the S&P 500 | +96.1 pts | +32.9 pts |
| vs the Nasdaq-100 | +90.6 pts | +27.4 pts |
| Below its high | −26.8% | −12.5% |
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.
QTUM in plain words
By weight, 35% of QTUM's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 83%. The top ten holdings are 17% of the fund across 89 positions, as published by its issuer for Sep 14, 2026. Over the year to Sep 11, 2026 the fund returned +50.4% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 32.9 pts. It sits 12.5% below its all-time high of Jun 2, 2026.
Questions people ask
- Which is more different from the S&P 500, DRAM or QTUM?
- DRAM has 20% of its weight in S&P 500 names and QTUM has 35%, so DRAM differs more from the index.
- Which is cheaper, DRAM or QTUM?
- DRAM charges 0.65% a year and QTUM charges 0.40%, so QTUM 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 QTUM, data as of Sep 11, 2026. https://etfiq.com/compare/themes/dram-vs-qtum Free to use with attribution; the underlying files are at Open data.