ARKK vs OAIW
ARK Innovation ETF vs OpenAI Lab Ecosystem ETF
Which is better, ARKK or OAIW?
OAIW costs less.
OAIW has a lower expense ratio. ARKK is less concentrated, with 50.3% of the fund in its ten largest positions against 60.5%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | ARKK | OAIW |
|---|---|---|
| Expense Ratio | 0.75% | 0.59%Best |
| AUM | $7.9B | $6M |
| Dividend Yield | 0.00% | 0.00% |
| Holdings | 84 | 25 |
| YTD Return | +7.88%Best | -10.04% |
| 1Y Return | -2.74% | - |
| 3Y Return (annualized) | +29.97% | - |
| 5Y Return (annualized) | -5.92% | - |
| Top 10 Weight | 50.3%Best | 60.5% |
| Fund Family | Ark Invest | Harbor Funds |
| Category | Equity | Equity |
| Style | Large Cap Growth | Large Cap Growth |
| Inception | Oct 31, 2014 | Aug 12, 2026 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
ARKK vs OAIW growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
ARKK vs OAIW Performance
ARK Innovation ETF (ARKK) is an ETF from Ark Invest and OpenAI Lab Ecosystem ETF (OAIW) is an ETF from Harbor Funds. Year to date, ARKK is up 7.88% versus a loss of 10.04% for OAIW.
Past performance does not guarantee future results.
Fees and Cost Over Time
ARKK charges 0.75% per year while OAIW charges 0.59%. On a $10,000 position that is $75 vs $59 annually, a gap of $16 per year that compounds over a long holding period. On income, ARKK currently yields 0.00% against 0.00% for OAIW.
Holdings Overlap
17.0% of ARKK's money is in holdings OAIW also owns. 31.0% of OAIW's money is in holdings ARKK also owns.
The two portfolios partly overlap.
7 positions in common, counted across the 41 positions we hold weights for in ARKK and 26 in OAIW, against full books of 84 and 25.
What only one of them owns
Our book lists 13 positions for OAIW that do not appear in our book for ARKK (43.5% of the fund), and 31 for ARKK that do not appear in OAIW (74.3%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in ARKK | Weight in OAIW | Difference |
|---|---|---|---|
| NVDANvidia Corp | 3.47% | 5.11% | 1.64% |
| AMZNAmazon.Com Inc | 2.36% | 5.62% | 3.26% |
| CBRSCerebras Systems Inc - A | 2.14% | 5.71% | 3.57% |
| AMDAdvanced Micro Devices Inc | 3.09% | 3.05% | 0.04% |
| AVGOBroadcom Inc | 1.74% | 4.38% | 2.64% |
| CRWVCoreweave, Inc. | 2.92% | 2.84% | 0.08% |
| 2330:TWTaiwan Semiconductor Manufacturing Co Ltd | 1.29% | 4.33% | 3.04% |
31.0% of OAIW is already inside ARKK.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, ARKK or OAIW?
ARKK has an expense ratio of 0.75% while OAIW charges 0.59%. OAIW is the cheaper option, by $16 a year on a $10,000 investment.
What is the holdings overlap between ARKK and OAIW?
31.0% of OAIW's money is in holdings ARKK also owns. 31.0% of OAIW's is in holdings ARKK also owns. They hold 7 positions in common, counted across the 41 positions we hold weights for in ARKK and 26 in OAIW.
Which pays a higher dividend, ARKK or OAIW?
ARKK yields 0.00% while OAIW yields 0.00%, so OAIW currently pays the higher dividend yield.
Is OAIW better than ARKK?
OAIW has a lower expense ratio. ARKK is less concentrated, with 50.3% of the fund in its ten largest positions against 60.5%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.