CGUS vs OEF overlap - what they share and where they differ
CGUS and OEF share 46.2% of their weight across 30 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.
CGUS and OEF
46.2%
30 shared positions
CGUS
Capital Group Core Equity ETF
Reported positions cover 100% of the fund, 65 positions · May 31, 2026
Top 10: 45.1%·Holdings of CGUS
OEF
iShares S&P 100 ETF
Reported positions cover 100% of the fund, 100 positions · Jun 30, 2026
Top 10: 52.8%·Holdings of OEF
Reported positions cover CGUS 100%, OEF 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
OEF vs CGUS side by side
CGUSCapital Group Core Equity ETF
65
stock positions reported to the SEC
36.1% of its weight is in 35 names OEF does not hold
OEFiShares S&P 100 ETF
100
stock positions reported to the SEC
38.5% of its weight is in 70 names CGUS does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: OEF has 7.5 points more of it.
The figures side by side
| CGUS | OEF | |
|---|---|---|
| Filing date | May 31, 2026 | Jun 30, 2026 |
| Stock positions reported | 65 | 100 |
| Weight of the ten largest | 45.1% | 52.8% |
| Largest position | NVDA 6.9% | NVDA 10.5% |
| Held alone | 35 positions, 36.1% | 70 positions, 38.5% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In CGUS | In OEF | Counted |
|---|---|---|---|
| NVDANVIDIA Corp | 6.85% | 10.47% | 6.85% |
| MSFTMicrosoft Corp | 5.75% | 5.99% | 5.75% |
| GOOGLAlphabet Inc | 5.15% | 8.14% | 5.15% |
| AMZNAmazon.com Inc | 5.04% | 5.04% | 5.04% |
| AVGOBroadcom Inc | 6.33% | 3.86% | 3.86% |
| AAPLApple Inc | 2.76% | 9.18% | 2.76% |
| METAMeta Platforms Inc | 3.79% | 2.67% | 2.67% |
| LLYEli Lilly & Co | 3.92% | 2.05% | 2.05% |
| AMATApplied Materials Inc | 2.57% | 1.24% | 1.24% |
| CSCOCisco Systems Inc | 1.95% | 1.00% | 1.00% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in CGUS
Only in OEF
Questions people ask
Is CGUS the same as OEF?
46.2% of their weight sits in the same 30 holdings. CGUS also reports CAPITAL GROUP CENTRAL CASH FUND, TSM, STX, which the other does not. OEF also reports MU, TSLA, AMD, which the other does not.
How is the overlap between CGUS and OEF 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 CGUS and 100% of OEF, so the number cannot exceed the smaller coverage.
Which holds more, OEF or CGUS?
CGUS reports 65 stock positions and OEF reports 100. 36.1% of CGUS's weight sits in names OEF does not hold, and 38.5% of OEF's weight in names CGUS does not hold. The ten largest positions are 45.1% of CGUS and 52.8% of OEF.
How do CGUS and OEF differ by sector?
The widest gap is Technology: OEF has 7.5 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.
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.