Data as of .
ARKK vs IFRA: which is really different?
IFRA holds 71.4% of its weight in S&P 500 companies and ARKK 38.1%.
ETFIQ Off-Index Score: IFRA 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 IFRA hold 0% of their money in the same securities at the same weight.
| Only in ARKK | Only in IFRA |
|---|---|
| TESLA INC 9.75% | UNION PACIFIC 4.43% |
| SPACE EXPLORATION TECHN-CL A 6.52% | NEXTERA ENERGY 4.05% |
| CIRCLE INTERNET GROUP INC 5.56% | CATERPILLAR INC 3.76% |
| TEMPUS AI INC-CL A 4.83% | QUANTA SERVICES INC 3.52% |
| CRISPR THERAPEUTICS AG 4.52% | CSX 3.48% |
| COINBASE GLOBAL INC -CLASS A 4.47% | SOUTHERN 2.91% |
| ROBINHOOD MARKETS INC - A 4.18% | CONSTELLATION ENERGY CORP 2.85% |
| TWIST BIOSCIENCE CORP 3.29% | NORFOLK SOUTHERN CORP 2.78% |
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 | IFRA | ARKK | IFRA | ARKK | IFRA | |
| 3 months | +10.5% | −5.6% | +7.2 pts | −8.9 pts | +11.3 pts | −4.8 pts |
| 6 months | +19.0% | +2.3% | +3.0 pts | −13.7 pts | −1.7 pts | −18.4 pts |
| 1 year | +6.7% | +13.5% | −10.8 pts | −4.0 pts | −16.2 pts | −9.5 pts |
| 3 years | +89.9% | +61.6% | +12.0 pts | −16.3 pts | −5.2 pts | −33.5 pts |
| Since launch | +353.4% | +169.3% | −8.3 pts | −57.4 pts | −318.1 pts | −200.6 pts |
| ARKK ARK Innovation ETF Holds 47 stocks in broad innovation and megatrends, 38% of its weight in S&P 500 companies | IFRA iShares U.S. Infrastructure ETF Holds 164 stocks in infrastructure, 71% of its weight in S&P 500 companies | |
|---|---|---|
| Issuer | ARK | iShares |
| Theme | Broad innovation and megatrends | Infrastructure |
| In the S&P 500 | 38.1% | 71.4% |
| Active share vs the S&P 500 | 85.0% | 95.7% |
| In the Nasdaq-100 | 28.6% | 11.0% |
| Holdings | 47 | 164 |
| Top ten, share of the fund | 49.4% | 33.1% |
| Expense ratio | 0.75% | 0.30% |
| Fee for the differing part | 0.88% | 0.31% |
| Total return, 1 year | +6.7% | +13.5% |
| vs the S&P 500 | −10.8 pts | −4.0 pts |
| vs the Nasdaq-100 | −16.2 pts | −9.5 pts |
| Below its high | −45.9% | −8.9% |
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.
IFRA in plain words
By weight, 71% of IFRA'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 33% of the fund across 164 positions, as published by its issuer for Sep 10, 2026. Over the year to Sep 11, 2026 the fund returned +13.5% with distributions reinvested against +17.5% for the S&P 500, so a holder was behind by 4.0 pts. It sits 8.9% below its all-time high of Jun 25, 2026.
Questions people ask
- Which is more different from the S&P 500, ARKK or IFRA?
- ARKK has 38% of its weight in S&P 500 names and IFRA has 71%, so IFRA differs more from the index.
- Which is cheaper, ARKK or IFRA?
- ARKK charges 0.75% a year and IFRA charges 0.30%, so IFRA 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 IFRA, data as of Sep 11, 2026. https://etfiq.com/compare/themes/arkk-vs-ifra Free to use with attribution; the underlying files are at Open data.