GRID vs QTUM overlap - what they share and where they differ
GRID and QTUM share 8.5% of their weight across 15 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.
GRID and QTUM
8.5%
15 shared positions
GRID
First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund
Reported positions cover 100% of the fund, 119 positions · Jun 30, 2026
Top 10: 58.4%·Holdings of GRID
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 GRID 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 GRID side by side
GRIDFirst Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund
119
stock positions reported to the SEC
89.3% of its weight is in 104 names QTUM does not hold
QTUMDefiance Quantum ETF
86
stock positions reported to the SEC
84.4% of its weight is in 71 names GRID does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: QTUM has 38.1 points more of it.
The figures side by side
| GRID | QTUM | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 119 | 86 |
| Weight of the ten largest | 58.4% | 16.9% |
| Largest position | EATON CORP PLC 8.5% | ARQIT QUANTUM INC 2.4% |
| Held alone | 104 positions, 89.3% | 71 positions, 84.4% |
| Covered by stock positions | 100% | 99% |
Holdings they share
| Stock | In GRID | In QTUM | Counted |
|---|---|---|---|
| NVDANVIDIA CORP | 1.90% | 1.06% | 1.06% |
| CSCOCISCO SYSTEMS INC | 1.67% | 1.05% | 1.05% |
| TXNTEXAS INSTRUMENTS INC | 0.98% | 1.12% | 0.98% |
| IBMINTERNATIONAL BUSINESS MACHINES CORP | 0.95% | 1.10% | 0.95% |
| ORCLORACLE CORP | 1.04% | 0.77% | 0.77% |
| ADIANALOG DEVICES INC | 0.70% | 1.07% | 0.70% |
| QCOMQUALCOMM INC | 0.69% | 1.03% | 0.69% |
| HITACHI LTD | 0.51% | 0.98% | 0.51% |
| INFINEON TECHNOLOGIES AG | 0.46% | 1.14% | 0.46% |
| MITSUBISHI ELECTRIC CORP | 0.31% | 1.11% | 0.31% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in GRID
Only in QTUM
Questions people ask
Is GRID the same as QTUM?
8.5% of their weight sits in the same 15 holdings. GRID also reports EATON CORP PLC, SCHNEIDER ELECTRIC SE, ABB LTD (CH), which the other does not. QTUM also reports ARQIT QUANTUM INC, HQ, QNT, which the other does not.
How is the overlap between GRID 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 GRID and 99% of QTUM, so the number cannot exceed the smaller coverage.
Which holds more, QTUM or GRID?
GRID reports 119 stock positions and QTUM reports 86. 89.3% of GRID's weight sits in names QTUM does not hold, and 84.4% of QTUM's weight in names GRID does not hold. The ten largest positions are 58.4% of GRID and 16.9% of QTUM.
How do GRID and QTUM differ by sector?
The widest gap is Technology: QTUM has 38.1 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.