Data as of .
COPX vs DRAM: which is really different?
DRAM holds 20.0% of its weight in S&P 500 companies and COPX 4.8%.
ETFIQ Off-Index Score: COPX 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, COPX and DRAM hold 0% of their money in the same securities at the same weight.
| Only in COPX | Only in DRAM |
|---|---|
| HUDBAY MINERALS INC 5.46% | TREASURY BILL 27.17% |
| TECK RESOURCES LTD-CLS B 5.29% | SK hynix Inc 20.19% |
| FIRST QUANTUM MINERALS LTD 5.12% | Samsung Electronics Co Ltd 18.26% |
| BHP GROUP LTD 5.02% | Sandisk Corp 6.62% |
| GLENCORE PLC 4.99% | Kioxia Holdings Corp 5.54% |
| KGHM POLSKA MIEDZ SA 4.86% | Western Digital Corp 5.46% |
| SOUTHERN COPPER CORP 4.84% | Seagate Technology Holdings PL 5.32% |
| FREEPORT-MCMORAN INC 4.79% | GigaDevice Semiconductor Inc 3.90% |
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 11, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| COPX | DRAM | COPX | DRAM | COPX | DRAM | |
| 3 months | +3.3% | −9.1% | 0.0 pts | −12.4 pts | +4.1 pts | −8.3 pts |
| 6 months | +16.3% | not published | +0.3 pts | not published | −4.4 pts | not published |
| 1 year | +71.5% | not published | +54.0 pts | not published | +48.5 pts | not published |
| 3 years | +152.5% | not published | +74.7 pts | not published | +57.5 pts | not published |
| Since launch | +184.2% | +112.9% | −560.2 pts | +96.1 pts | −1369.2 pts | +90.6 pts |
| COPX Global X Copper Miners ETF Holds 41 stocks in electrification and the grid, 5% of its weight in S&P 500 companies | DRAM Roundhill Memory ETF Holds 13 stocks in memory and storage, 20% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | Global X | Roundhill |
| Theme | Electrification and the grid | Memory and storage |
| In the S&P 500 | 4.8% | 20.0% |
| Active share vs the S&P 500 | 99.9% | 96.8% |
| In the Nasdaq-100 | 0.0% | 20.0% |
| Holdings | 41 | 13 |
| Top ten, share of the fund | 49.4% | 97.3% |
| Expense ratio | 0.65% | 0.65% |
| Fee for the differing part | 0.65% | 0.67% |
| Total return, 1 year | +71.5% | +112.9% (since launch on Apr 2, 2026) |
| vs the S&P 500 | +54.0 pts | +96.1 pts |
| vs the Nasdaq-100 | +48.5 pts | +90.6 pts |
| Below its high | −8.2% | −26.8% |
COPX in plain words
By weight, 5% of COPX'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 49% of the fund across 41 positions, as published by its issuer for Sep 11, 2026. Over the year to Sep 11, 2026 the fund returned +71.5% with distributions reinvested against +17.5% for the S&P 500, so a holder was ahead by 54.0 pts. It sits 8.2% below its all-time high of Aug 27, 2026.
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.
Questions people ask
- Which is more different from the S&P 500, COPX or DRAM?
- COPX has 5% of its weight in S&P 500 names and DRAM has 20%, so COPX differs more from the index.
- Which is cheaper, COPX or DRAM?
- COPX charges 0.65% a year and DRAM charges 0.65%, so COPX 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, COPX against DRAM, data as of Sep 11, 2026. https://etfiq.com/compare/themes/copx-vs-dram Free to use with attribution; the underlying files are at Open data.