# ARKX (ARK Space & Defense Innovation ETF)

ARK · Thematic ETFs · data as of Sep 11, 2026

ARKX holds 35 stocks, and 50% of its weight is outside the S&P 500.

## Key facts

- ARKX, already in the S&P 500: 50.5%, as of Sep 11, 2026.
- ARKX, active share vs the S&P 500: 84.4%, as of Sep 11, 2026.
- ARKX, top ten holdings: 55.7%, as of Sep 11, 2026.
- ARKX, total return, 1 year: +22.5%, as of Sep 11, 2026.
- ARKX, net assets: $750m (the issuer daily holdings, added up, as of Sep 11, 2026).
- ARKX, expense ratio: 0.75% (485BPOS XBRL, Nov 26, 2025).

## ARKX over each window to Sep 11, 2026

| Window | Total return | S&P 500 | Gap to S&P 500 | Gap to Nasdaq-100 |
| --- | --- | --- | --- | --- |
| 3 months | −5.7% | +3.3% | −9.0 pts | −5.0 pts |
| 6 months | +3.6% | +16.0% | −12.4 pts | −17.1 pts |
| 1 year | +22.5% | +17.5% | +5.0 pts | −0.5 pts |
| 3 years | +123.0% | +77.9% | +45.1 pts | +27.9 pts |
| Since launch | +56.9% | +107.9% | −51.0 pts | −77.8 pts |

## Every published field

| Field | Value | Source |
| --- | --- | --- |
| Theme | Space | ETFIQ, editorial |
| Launched | Mar 30, 2021 | ETFIQ |
| Already in the S&P 500, by weight | 50.5% | ETFIQ |
| Active share vs the S&P 500 | 84.4% | ETFIQ |
| Already in the Nasdaq-100, by weight | 27.3% | ETFIQ |
| Active share vs the Nasdaq-100 | 78.1% | ETFIQ |
| Top ten holdings weight | 55.7% | ETFIQ |
| Holdings | 35 | ETFIQ |
| Holdings as of | Sep 11, 2026 | the issuer’s daily file |
| Top holdings | SPACE EXPLORATION TECHN-CL A 10.7%, L3HARRIS TECHNOLOGIES INC 6.5%, KRATOS DEFENSE & SECURITY 6.1%, DEERE & CO 5.7%, ROCKET LAB 5.1%, AMAZON.COM INC 4.6%, ADVANCED MICRO DEVICES 4.4%, NVIDIA CORP 4.4%, AEROVIRONMENT INC 4.3%, ALPHABET INC-CL C 3.9% | ETFIQ |
| Net assets | $750m | the issuer daily holdings, added up, as of Sep 11, 2026 |
| Below its all-time high | −15.6% | ETFIQ |
| Expense ratio | 0.75% | 485BPOS XBRL, Nov 26, 2025 |
| Fee for the part that differs from the S&P 500, active expense ratio | 0.89% | ETFIQ |
| Closest funds by holdings overlap | ARKQ 69%, FBOT 29%, ARKK 29%, ARKW 28%, AGIQ 27% | ETFIQ |

## Questions

### How much of ARKX is in S&P 500 companies?

By its holdings published by its issuer for Sep 11, 2026, 50% of ARKX by weight is stocks the S&P 500 already holds. Its active share against the index is 84%, so that share is the part doing something different.

### What does ARKX hold?

35 positions as published by its issuer for Sep 11, 2026, with the top ten at 56% of the fund. The largest are SPACE EXPLORATION TECHN-CL A at 10.7%, L3HARRIS TECHNOLOGIES INC at 6.5%, KRATOS DEFENSE & SECURITY at 6.1%.

### Has ARKX beaten the S&P 500?

Over the year to Sep 11, 2026 ARKX returned +22.5% with distributions reinvested, against +17.5% for the S&P 500, so it finished ahead of the index by 5.0 points.

### What does ARKX cost?

The prospectus expense ratio is 0.75% a year. Because 84% of the fund differs from the S&P 500, the fee on that differing part works out at 0.89%.


## Cite this page

ETFIQ, ARKX, data as of Sep 11, 2026. https://etfiq.com/funds/arkx
Free to use with attribution; the underlying files are at https://etfiq.com/data/.

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