QTUM vs SOXQ overlap - what they share and where they differ
QTUM and SOXQ share 24.9% of their weight across 20 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.
QTUM and SOXQ
24.9%
20 shared positions
QTUM
Defiance Quantum ETF
Reported positions cover 99% of the fund, 86 positions · Jun 30, 2026
Top 10: 16.9%·Holdings of QTUM
SOXQ
Invesco PHLX Semiconductor ETF
Reported positions cover 99% of the fund, 30 positions · May 31, 2026
Top 10: 63.0%·Holdings of SOXQ
Reported positions cover QTUM 99%, SOXQ 99% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
SOXQ vs QTUM side by side
QTUMDefiance Quantum ETF
86
stock positions reported to the SEC
74.4% of its weight is in 66 names SOXQ does not hold
SOXQInvesco PHLX Semiconductor ETF
30
stock positions reported to the SEC
12.5% of its weight is in 10 names QTUM does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: SOXQ has 33.2 points more of it.
The figures side by side
| QTUM | SOXQ | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 86 | 30 |
| Weight of the ten largest | 16.9% | 63.0% |
| Largest position | ARQIT QUANTUM INC 2.4% | MU 11.8% |
| Held alone | 66 positions, 74.4% | 10 positions, 12.5% |
| Covered by stock positions | 99% | 99% |
Holdings they share
| Stock | In QTUM | In SOXQ | Counted |
|---|---|---|---|
| ALABAstera Labs Inc | 1.55% | 2.14% | 1.55% |
| AMATApplied Materials Inc | 1.55% | 3.02% | 1.55% |
| KLACKLA Corp | 1.50% | 3.14% | 1.50% |
| TERTeradyne Inc | 1.48% | 2.15% | 1.48% |
| LRCXLam Research Corp | 1.43% | 3.40% | 1.43% |
| INTCIntel Corp | 1.39% | 6.28% | 1.39% |
| MUMicron Technology Inc | 1.37% | 11.76% | 1.37% |
| AMDAdvanced Micro Devices Inc | 1.36% | 6.44% | 1.36% |
| MRVLMarvell Technology Inc | 1.25% | 6.27% | 1.25% |
| ARM HOLDINGS PLC | 1.23% | 1.81% | 1.23% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in QTUM
Only in SOXQ
Questions people ask
Is QTUM the same as SOXQ?
24.9% of their weight sits in the same 20 holdings. QTUM also reports ARQIT QUANTUM INC, HQ, QNT, which the other does not. SOXQ also reports MPWR, TSM, GFS, which the other does not.
How is the overlap between QTUM and SOXQ measured?
For every stock both funds report, the smaller of the two weights counts, and the sum is the overlap. The reported positions cover 99% of QTUM and 99% of SOXQ, so the number cannot exceed the smaller coverage.
Which holds more, SOXQ or QTUM?
QTUM reports 86 stock positions and SOXQ reports 30. 74.4% of QTUM's weight sits in names SOXQ does not hold, and 12.5% of SOXQ's weight in names QTUM does not hold. The ten largest positions are 16.9% of QTUM and 63.0% of SOXQ.
How do QTUM and SOXQ differ by sector?
The widest gap is Technology: SOXQ has 33.2 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.
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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.