Data as of .
ARKK vs DRAM: which is really different?
ARKK holds 38.1% 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, ARKK and DRAM hold 0% of their money in the same securities at the same weight.
| Only in ARKK | Only in DRAM |
|---|---|
| TESLA INC 9.75% | TREASURY BILL 27.17% |
| SPACE EXPLORATION TECHN-CL A 6.52% | SK hynix Inc 20.19% |
| CIRCLE INTERNET GROUP INC 5.56% | Samsung Electronics Co Ltd 18.26% |
| TEMPUS AI INC-CL A 4.83% | Sandisk Corp 6.62% |
| CRISPR THERAPEUTICS AG 4.52% | Kioxia Holdings Corp 5.54% |
| COINBASE GLOBAL INC -CLASS A 4.47% | Western Digital Corp 5.46% |
| ROBINHOOD MARKETS INC - A 4.18% | Seagate Technology Holdings PL 5.32% |
| TWIST BIOSCIENCE CORP 3.29% | 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 | |||
|---|---|---|---|---|---|---|
| ARKK | DRAM | ARKK | DRAM | ARKK | DRAM | |
| 3 months | +10.5% | −9.1% | +7.2 pts | −12.4 pts | +11.3 pts | −8.3 pts |
| 6 months | +19.0% | not published | +3.0 pts | not published | −1.7 pts | not published |
| 1 year | +6.7% | not published | −10.8 pts | not published | −16.2 pts | not published |
| 3 years | +89.9% | not published | +12.0 pts | not published | −5.2 pts | not published |
| Since launch | +353.4% | +112.9% | −8.3 pts | +96.1 pts | −318.1 pts | +90.6 pts |
| ARKK ARK Innovation ETF Holds 47 stocks in broad innovation and megatrends, 38% 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 | ARK | Roundhill |
| Theme | Broad innovation and megatrends | Memory and storage |
| In the S&P 500 | 38.1% | 20.0% |
| Active share vs the S&P 500 | 85.0% | 96.8% |
| In the Nasdaq-100 | 28.6% | 20.0% |
| Holdings | 47 | 13 |
| Top ten, share of the fund | 49.4% | 97.3% |
| Expense ratio | 0.75% | 0.65% |
| Fee for the differing part | 0.88% | 0.67% |
| Total return, 1 year | +6.7% | +112.9% (since launch on Apr 2, 2026) |
| vs the S&P 500 | −10.8 pts | +96.1 pts |
| vs the Nasdaq-100 | −16.2 pts | +90.6 pts |
| Below its high | −45.9% | −26.8% |
ARKK in plain words
By weight, 38% of ARKK's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 85%. The top ten holdings are 49% of the fund across 47 positions, as published by its issuer for Sep 11, 2026. Over the year to Sep 11, 2026 the fund returned +6.7% with distributions reinvested against +17.5% for the S&P 500, so a holder was behind by 10.8 pts. It sits 45.9% below its all-time high of Feb 12, 2021.
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, ARKK or DRAM?
- ARKK has 38% of its weight in S&P 500 names and DRAM has 20%, so DRAM differs more from the index.
- Which is cheaper, ARKK or DRAM?
- ARKK charges 0.75% a year and DRAM charges 0.65%, so DRAM 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, ARKK against DRAM, data as of Sep 11, 2026. https://etfiq.com/compare/themes/arkk-vs-dram Free to use with attribution; the underlying files are at Open data.