QQQ vs QTUM overlap - what they share and where they differ
QQQ and QTUM share 24.3% of their weight across 29 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.
QQQ and QTUM
24.3%
29 shared positions
QQQ
Invesco QQQ Trust, Series 1
Reported positions cover 100% of the fund, 101 positions · Jun 30, 2026
Top 10: 47.8%·Holdings of QQQ
QTUM
Defiance Quantum ETF
Reported positions cover 99% of the fund, 86 positions · Jun 30, 2026
Top 10: 16.9%·Holdings of QTUM
Reported positions cover QQQ 100%, QTUM 99% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
QTUM vs QQQ side by side
QQQInvesco QQQ Trust, Series 1
101
stock positions reported to the SEC
43.8% of its weight is in 72 names QTUM does not hold
QTUMDefiance Quantum ETF
86
stock positions reported to the SEC
65.6% of its weight is in 57 names QQQ does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: QQQ has 9.9 points more of it.
The figures side by side
| QQQ | QTUM | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 101 | 86 |
| Weight of the ten largest | 47.8% | 16.9% |
| Largest position | NVDA 7.6% | ARQIT QUANTUM INC 2.4% |
| Held alone | 72 positions, 43.8% | 57 positions, 65.6% |
| Covered by stock positions | 100% | 99% |
Holdings they share
| Stock | In QQQ | In QTUM | Counted |
|---|---|---|---|
| AMATApplied Materials, Inc. | 2.49% | 1.55% | 1.55% |
| KLACKLA Corp. | 1.71% | 1.50% | 1.50% |
| LRCXLam Research Corp. | 2.35% | 1.43% | 1.43% |
| INTCIntel Corp. | 3.04% | 1.39% | 1.39% |
| MUMicron Technology, Inc. | 5.64% | 1.37% | 1.37% |
| AMDAdvanced Micro Devices, Inc. | 4.10% | 1.36% | 1.36% |
| MRVLMarvell Technology, Inc. | 1.13% | 1.25% | 1.13% |
| TXNTexas Instruments Inc. | 1.17% | 1.12% | 1.12% |
| AVGOBroadcom Inc. | 2.81% | 1.08% | 1.08% |
| GOOGLAlphabet Inc. | 6.29% | 1.07% | 1.07% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in QQQ
Only in QTUM
Questions people ask
Is QQQ the same as QTUM?
24.3% of their weight sits in the same 29 holdings. QQQ also reports AAPL, TSLA, META, which the other does not. QTUM also reports ARQIT QUANTUM INC, HQ, QNT, which the other does not.
How is the overlap between QQQ and QTUM 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 QQQ and 99% of QTUM, so the number cannot exceed the smaller coverage.
Which holds more, QTUM or QQQ?
QQQ reports 101 stock positions and QTUM reports 86. 43.8% of QQQ's weight sits in names QTUM does not hold, and 65.6% of QTUM's weight in names QQQ does not hold. The ten largest positions are 47.8% of QQQ and 16.9% of QTUM.
How do QQQ and QTUM differ by sector?
The widest gap is Technology: QQQ has 9.9 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
QQQ 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.