Data as of .
ARKK vs ITA: which is really different?
ITA holds 79.5% of its weight in S&P 500 companies and ARKK 38.1%.
ETFIQ Off-Index Score: ITA 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 ITA hold 0% of their money in the same securities at the same weight.
| Only in ARKK | Only in ITA |
|---|---|
| TESLA INC 9.75% | GE AEROSPACE 21.81% |
| SPACE EXPLORATION TECHN-CL A 6.52% | RTX 17.21% |
| CIRCLE INTERNET GROUP INC 5.56% | BOEING 9.36% |
| TEMPUS AI INC-CL A 4.83% | GENERAL DYNAMICS CORP 4.82% |
| CRISPR THERAPEUTICS AG 4.52% | LOCKHEED MARTIN CORP 4.69% |
| COINBASE GLOBAL INC -CLASS A 4.47% | NORTHROP GRUMMAN CORP 4.44% |
| ROBINHOOD MARKETS INC - A 4.18% | TRANSDIGM GROUP 4.31% |
| TWIST BIOSCIENCE CORP 3.29% | HOWMET AEROSPACE 4.24% |
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 10, 2026 and Sep 11, 2026.
Performance, window by window
| Window | Total return | vs the S&P 500 | vs the Nasdaq-100 | |||
|---|---|---|---|---|---|---|
| ARKK | ITA | ARKK | ITA | ARKK | ITA | |
| 3 months | +10.5% | −6.3% | +7.2 pts | −9.6 pts | +11.3 pts | −5.5 pts |
| 6 months | +19.0% | −4.4% | +3.0 pts | −20.4 pts | −1.7 pts | −25.1 pts |
| 1 year | +6.7% | +10.0% | −10.8 pts | −7.5 pts | −16.2 pts | −13.0 pts |
| 3 years | +89.9% | +103.7% | +12.0 pts | +25.8 pts | −5.2 pts | +8.6 pts |
| Since launch | +353.4% | +906.7% | −8.3 pts | +102.3 pts | −318.1 pts | −767.2 pts |
| ARKK ARK Innovation ETF Holds 47 stocks in broad innovation and megatrends, 38% of its weight in S&P 500 companies | ITA iShares U.S. Aerospace & Defense ETF Holds 51 stocks in defense, 80% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | ARK | iShares |
| Theme | Broad innovation and megatrends | Defense |
| In the S&P 500 | 38.1% | 79.5% |
| Active share vs the S&P 500 | 85.0% | 97.9% |
| In the Nasdaq-100 | 28.6% | 3.0% |
| Holdings | 47 | 51 |
| Top ten, share of the fund | 49.4% | 77.5% |
| Expense ratio | 0.75% | 0.37% |
| Fee for the differing part | 0.88% | 0.38% |
| Total return, 1 year | +6.7% | +10.0% |
| vs the S&P 500 | −10.8 pts | −7.5 pts |
| vs the Nasdaq-100 | −16.2 pts | −13.0 pts |
| Below its high | −45.9% | −13.5% |
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.
ITA in plain words
By weight, 80% of ITA's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 98%. The top ten holdings are 78% of the fund across 51 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +10.0% with distributions reinvested against +17.5% for the S&P 500, so a holder was behind by 7.5 pts. It sits 13.5% below its all-time high of Aug 14, 2026.
Questions people ask
- Which is more different from the S&P 500, ARKK or ITA?
- ARKK has 38% of its weight in S&P 500 names and ITA has 80%, so ITA differs more from the index.
- Which is cheaper, ARKK or ITA?
- ARKK charges 0.75% a year and ITA charges 0.37%, so ITA 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 ITA, data as of Sep 11, 2026. https://etfiq.com/compare/themes/arkk-vs-ita Free to use with attribution; the underlying files are at Open data.