VB vs XMMO overlap - what they share and where they differ
VB and XMMO share 11.5% of their weight across 71 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.
VB and XMMO
11.5%
71 shared positions
VB
VANGUARD SMALL-CAP INDEX FUND
Reported positions cover 100% of the fund, 1,274 positions · Jun 30, 2026
Top 10: 4.3%·Holdings of VB
XMMO
Invesco S&P MidCap Momentum ETF
Reported positions cover 100% of the fund, 76 positions · Apr 30, 2026
Top 10: 27.9%·Holdings of XMMO
Reported positions cover VB 100%, XMMO 100% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
XMMO vs VB side by side
VBVANGUARD SMALL-CAP INDEX FUND
1,274
stock positions reported to the SEC
88.4% of its weight is in 1,203 names XMMO does not hold
XMMOInvesco S&P MidCap Momentum ETF
76
stock positions reported to the SEC
6.3% of its weight is in 5 names VB does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Basic Materials: XMMO has 13.3 points more of it.
The figures side by side
| VB | XMMO | |
|---|---|---|
| Filing date | Jun 30, 2026 | Apr 30, 2026 |
| Stock positions reported | 1,274 | 76 |
| Weight of the ten largest | 4.3% | 27.9% |
| Largest position | CRDO 0.6% | CW 3.9% |
| Held alone | 1,203 positions, 88.4% | 5 positions, 6.3% |
| Covered by stock positions | 100% | 100% |
Holdings they share
| Stock | In VB | In XMMO | Counted |
|---|---|---|---|
| MKSIMKS Instruments Inc | 0.37% | 1.92% | 0.37% |
| CRSCarpenter Technology Corp | 0.35% | 1.74% | 0.35% |
| CWCurtiss-Wright Corp | 0.34% | 3.91% | 0.34% |
| ATIATI Inc | 0.33% | 2.63% | 0.33% |
| NVENT ELECTRIC PLC | 0.33% | 2.32% | 0.33% |
| FTITechnipFMC PLC | 0.32% | 3.60% | 0.32% |
| MTSIMACOM Technology Solutions Holdings Inc | 0.32% | 1.49% | 0.32% |
| MTZMasTec Inc | 0.32% | 2.26% | 0.32% |
| WWDWoodward Inc | 0.31% | 2.58% | 0.31% |
| STRLSterling Infrastructure Inc | 0.30% | 2.16% | 0.30% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in VB
Only in XMMO
Questions people ask
Is VB the same as XMMO?
11.5% of their weight sits in the same 71 holdings. VB also reports CRDO, JBL, RVMD, which the other does not. XMMO also reports FLEX LTD., WPC, SGI, which the other does not.
How is the overlap between VB and XMMO 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 VB and 100% of XMMO, so the number cannot exceed the smaller coverage.
Which holds more, XMMO or VB?
VB reports 1,274 stock positions and XMMO reports 76. 88.4% of VB's weight sits in names XMMO does not hold, and 6.3% of XMMO's weight in names VB does not hold. The ten largest positions are 4.3% of VB and 27.9% of XMMO.
How do VB and XMMO differ by sector?
The widest gap is Basic Materials: XMMO has 13.3 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.