ARKX vs QQQM overlap - what they share and where they differ
ARKX and QQQM share 21.6% of their weight across 8 common positions, read from what each fund reported to the SEC.
Each week Ploutos reads the reported positions of the largest US equity ETFs and measures, pair by pair, the weight they share: for every stock both funds hold, the smaller of the two weights counts. Two funds tracking the same index land near 100%. A sector fund inside a broad index fund lands at roughly that sector's weight.
ARKX and QQQM
21.6%
8 shared positions
ARKX
ARK Space & Defense Innovation ETF
Reported positions cover 100% of the fund, 34 positions · Jul 31, 2026
Top 10: 54.5%·Holdings of ARKX
QQQM
Invesco NASDAQ 100 ETF
Reported positions cover 100% of the fund, 100 positions · May 31, 2026
Top 10: 50.3%·Holdings of QQQM
Reported positions cover ARKX 100%, QQQM 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
QQQM vs ARKX side by side
ARKXARK Space & Defense Innovation ETF
34
stock positions reported to the SEC
73.2% of its weight is in 26 names QQQM does not hold
QQQMInvesco NASDAQ 100 ETF
100
stock positions reported to the SEC
70.7% of its weight is in 92 names ARKX does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Industrials: ARKX has 43.6 points more of it.
The figures side by side
| ARKX | QQQM | |
|---|---|---|
| Filing date | Jul 31, 2026 | May 31, 2026 |
| Stock positions reported | 34 | 100 |
| Weight of the ten largest | 54.5% | 50.3% |
| Largest position | SPCX 7.7% | NVDA 8.1% |
| Held alone | 26 positions, 73.2% | 92 positions, 70.7% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In ARKX | In QQQM | Counted |
|---|---|---|---|
| GOOGLALPHABET INC | 4.65% | 6.75% | 4.65% |
| AMZNAMAZON.COM INC | 4.90% | 4.60% | 4.60% |
| AMDADVANCED MICRO DEVICES INC | 4.93% | 3.68% | 3.68% |
| NVDANVIDIA CORP | 3.39% | 8.13% | 3.39% |
| TSLATESLA INC | 3.04% | 3.45% | 3.04% |
| PLTRPALANTIR TECHNOLOGIES INC | 2.94% | 1.57% | 1.57% |
| SNPSSYNOPSYS INC | 0.97% | 0.40% | 0.40% |
| DASHDOORDASH INC | 1.78% | 0.29% | 0.29% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in ARKX
Only in QQQM
Questions people ask
Is ARKX the same as QQQM?
21.6% of their weight sits in the same 8 holdings. ARKX also reports SPCX, LHX, KTOS, which the other does not. QQQM also reports AAPL, MSFT, MU, which the other does not.
How is the overlap between ARKX and QQQM measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 100% of ARKX and 100% of QQQM, so the number cannot exceed the smaller coverage.
Which holds more, QQQM or ARKX?
ARKX reports 34 stock positions and QQQM reports 100. 73.2% of ARKX's weight sits in names QQQM does not hold, and 70.7% of QQQM's weight in names ARKX does not hold. The ten largest positions are 54.5% of ARKX and 50.3% of QQQM.
How do ARKX and QQQM differ by sector?
The widest gap is Industrials: ARKX has 43.6 points more of it. Sectors come from each holding's SIC code in its SEC record, summed by the weight the fund reports.
Where do the numbers come from?
From each fund's own N-PORT filing to the SEC, which lists every position and its weight. The comparison uses every equity position the fund reports; cash, futures and bonds are not counted, which is why a coverage figure sits next to every result. Holdings change between filings.
Other pairs with these funds
QQQM against other funds in the table
Add a third fund in the tool·All fund pairs
Descriptive data from public SEC filings. Nothing on this page is a recommendation to buy, sell or hold any fund or stock, and holdings change between filings.