Data as of . Every figure is the themes desk's own, on published data.
ARKK vs BAI
ARK Innovation ETF and iShares A.I. Innovation and Tech Active ETF, side by side on the themes desk.
14% of the two portfolios are the same securities at the same weight.
Open the live comparison on ETFIQ| ARKK ARK Innovation ETF | BAI iShares A.I. Innovation and Tech Active ETF | |
|---|---|---|
| Issuer | ARK | iShares |
| Theme | Broad innovation and megatrends | Artificial intelligence |
| In the S&P 500 | 37.9% | 50.0% |
| Active share vs the S&P 500 | 85.4% | 77.9% |
| In the Nasdaq-100 | 28.4% | 43.9% |
| Holdings | 47 | 45 |
| Top ten, share of the fund | 50.3% | 43.8% |
| Expense ratio | 0.75% | not published |
| Fee for the differing part | 0.88% | not published |
| Total return, 1 year | +14.9% | +43.1% |
| vs the S&P 500 | −5.0 pts | +23.1 pts |
| vs the Nasdaq-100 | −10.7 pts | +17.5 pts |
| Below its high | −44.2% | −17.8% |
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 50% of the fund across 47 positions, as filed for Sep 4, 2026. Over the year to Sep 4, 2026 the fund returned +14.9% with distributions reinvested against +20.0% for the S&P 500, so a holder was behind by 5.0 pts. It sits 44.2% below its all-time high of Feb 12, 2021.
BAI in plain words
By weight, 50% of BAI's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 78%. The top ten holdings are 44% of the fund across 45 positions, as filed for Apr 30, 2026. Over the year to Sep 4, 2026 the fund returned +43.1% with distributions reinvested against +20.0% for the S&P 500, so a holder was ahead by 23.1 pts. It sits 17.8% below its all-time high of Jun 22, 2026.
Questions people ask
- Do ARKK and BAI hold the same stocks?
- By their latest filings, 14% 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, ARKK or BAI?
- ARKK has 38% of its weight in S&P 500 names and BAI has 50%, so ARKK differs more from the index.
Other comparisons
Cite this page. ETFIQ, ARKK against BAI, data as of Sep 4, 2026. https://etfiq.com/compare/themes/ARKK-BAI.html Free to use with attribution; the underlying files are at Open data.
ETFIQ is an independent publisher of exchange-traded fund data. It is not a fund issuer, broker-dealer or investment adviser, and it makes no recommendations; every figure here is stated arithmetic on published data. Standards and sources