IGM vs SPMO overlap - what they share and where they differ
IGM and SPMO share 52.0% of their weight across 22 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.
IGM and SPMO
52.0%
22 shared positions
IGM
iShares Expanded Tech Sector ETF
Reported positions cover 100% of the fund, 273 positions · Jun 30, 2026
Top 10: 58.1%·Holdings of IGM
SPMO
Invesco S&P 500 Momentum ETF
Reported positions cover 100% of the fund, 97 positions · May 31, 2026
Top 10: 55.3%·Holdings of SPMO
Reported positions cover IGM 100%, SPMO 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
SPMO vs IGM side by side
IGMiShares Expanded Tech Sector ETF
273
stock positions reported to the SEC
46.7% of its weight is in 251 names SPMO does not hold
SPMOInvesco S&P 500 Momentum ETF
97
stock positions reported to the SEC
36.6% of its weight is in 75 names IGM does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: IGM has 27.8 points more of it.
The figures side by side
| IGM | SPMO | |
|---|---|---|
| Filing date | Jun 30, 2026 | May 31, 2026 |
| Stock positions reported | 273 | 97 |
| Weight of the ten largest | 58.1% | 55.3% |
| Largest position | GOOGL 8.0% | MU 10.7% |
| Held alone | 251 positions, 46.7% | 75 positions, 36.6% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In IGM | In SPMO | Counted |
|---|---|---|---|
| GOOGLAlphabet, Inc. | 7.98% | 8.63% | 7.98% |
| NVDANVIDIA Corp. | 7.96% | 8.46% | 7.96% |
| AVGOBroadcom, Inc. | 7.60% | 7.58% | 7.58% |
| MUMicron Technology, Inc. | 5.46% | 10.73% | 5.46% |
| AMDAdvanced Micro Devices, Inc. | 4.13% | 4.14% | 4.13% |
| INTCIntel Corp. | 2.87% | 2.95% | 2.87% |
| LRCXLam Research Corp. | 2.36% | 3.54% | 2.36% |
| CSCOCisco Systems, Inc. | 2.02% | 2.02% | 2.02% |
| AMATApplied Materials, Inc. | 2.50% | 1.77% | 1.77% |
| SNDKSandisk Corp. | 1.47% | 2.46% | 1.47% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in IGM
Only in SPMO
Questions people ask
Is IGM the same as SPMO?
52.0% of their weight sits in the same 22 holdings. IGM also reports AAPL, MSFT, META, which the other does not. SPMO also reports JNJ, EXXON MOBIL CORP., CAT, which the other does not.
How is the overlap between IGM and SPMO 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 IGM and 100% of SPMO, so the number cannot exceed the smaller coverage.
Which holds more, SPMO or IGM?
IGM reports 273 stock positions and SPMO reports 97. 46.7% of IGM's weight sits in names SPMO does not hold, and 36.6% of SPMO's weight in names IGM does not hold. The ten largest positions are 58.1% of IGM and 55.3% of SPMO.
How do IGM and SPMO differ by sector?
The widest gap is Technology: IGM has 27.8 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.