Data as of .
ARKW vs ONLN: which is really different?
ARKW and ONLN hold 5% of their weight in the same names, and ARKW returned more over the year.
ETFIQ Off-Index Score: ONLN scores higher
How much of it is not the index it is sold as an alternative to?
A percentile among the 379 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
5% of the two portfolios are the same securities at the same weight.
What they hold in common
By the books each fund has filed, ARKW and ONLN hold 5% of their money in the same securities at the same weight.
| Holding | ARKW | ONLN |
|---|---|---|
| AMAZON.COM INC | 3.73% | 24.79% |
| MERCADOLIBRE INC | 1.10% | 3.90% |
| Only in ARKW | Only in ONLN |
|---|---|
| TESLA INC 7.65% | ALIBABA GROUP HOLDING-SP ADR 8.72% |
| ROBINHOOD MARKETS INC - A 4.74% | EBAY INC 8.69% |
| SPACE EXPLORATION TECHN-CL A 4.71% | CARVANA CO 4.64% |
| CIRCLE INTERNET GROUP INC 4.40% | PDD HOLDINGS INC 4.50% |
| ADVANCED MICRO DEVICES 4.07% | WILLIAMS-SONOMA INC 3.70% |
| ARK BITCOIN ETF HOLDCO (ARKW) 3.66% | WAYFAIR INC- CLASS A 3.49% |
| COINBASE GLOBAL INC -CLASS A 3.65% | COUPANG INC 3.43% |
| META PLATFORMS INC-CLASS A 3.60% | LIQUIDITY SERVICES INC 3.27% |
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 Sep 18, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| ARKW | ONLN | ARKW | ONLN | ARKW | ONLN | |
| 3 months | +8.4% | +0.9% | +6.2 pts | −1.4 pts | +10.9 pts | +3.4 pts |
| 6 months | +27.8% | +8.7% | +9.8 pts | −9.3 pts | +3.6 pts | −15.5 pts |
| 1 year | −5.3% | −8.8% | −21.8 pts | −25.3 pts | −27.0 pts | −30.5 pts |
| 3 years | +188.1% | +78.7% | +109.7 pts | +0.3 pts | +89.9 pts | −19.4 pts |
| Since launch | +867.7% | +42.6% | +495.5 pts | −166.3 pts | +168.5 pts | −281.6 pts |
| ARKW ARK Next Generation Internet ETF Holds 43 stocks in internet and e-commerce, 50% of its weight in S&P 500 companies | ONLN ProShares Online Retail ETF Holds 21 stocks in internet and e-commerce, 42% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | ARK | ProShares |
| Theme | Internet and e-commerce | Internet and e-commerce |
| In the S&P 500 | 50.0% | 41.8% |
| Active share vs the S&P 500 | 81.1% | 96.2% |
| In the Nasdaq-100 | 42.7% | 33.2% |
| Holdings | 43 | 21 |
| Top ten, share of the fund | 43.8% | 69.1% |
| Expense ratio | 0.76% | 0.58% |
| Fee for the differing part | 0.94% | 0.60% |
| Total return, 1 year | −5.3% | −8.8% |
| vs the S&P 500 | −21.8 pts | −25.3 pts |
| vs the Nasdaq-100 | −27.0 pts | −30.5 pts |
| Below its high | −13.7% | −38.9% |
| Net assets | $1.9bn | $59m |
ARKW in plain words
By weight, 50% of ARKW's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 81%. The top ten holdings are 44% of the fund across 43 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned −5.3% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 21.8 pts. It sits 13.7% below its all-time high of Feb 12, 2021.
ONLN in plain words
By weight, 42% of ONLN's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 96%. The top ten holdings are 69% of the fund across 21 positions, as published by its issuer for Sep 18, 2026. Over the year to Sep 18, 2026 the fund returned −8.8% with distributions reinvested against +16.6% for the S&P 500, so a holder was behind by 25.3 pts. It sits 38.9% below its all-time high of Feb 12, 2021.
Questions people ask
- Do ARKW and ONLN hold the same stocks?
- By their latest filings, 5% 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, ARKW or ONLN?
- ARKW has 50% of its weight in S&P 500 names and ONLN has 42%, so ONLN differs more from the index.
- Which is cheaper, ARKW or ONLN?
- ARKW charges 0.76% a year and ONLN charges 0.58%, so ONLN 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, ARKW against ONLN, data as of Sep 18, 2026. https://etfiq.com/compare/themes/arkw-vs-onln Free to use with attribution; the underlying files are at Open data.