VB vs VXF overlap - what they share and where they differ
VB and VXF share 74.8% of their weight across 1,131 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 VXF
74.8%
1,131 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
VXF
VANGUARD EXTENDED MARKET INDEX FUND
Reported positions cover 99% of the fund, 1,792 positions · Jun 30, 2026
Top 10: 7.6%·Holdings of VXF
Reported positions cover VB 100%, VXF 99% of each fund. An overlap cannot exceed the smaller coverage, so a low figure can mean little overlap or thin reporting.
VXF vs VB side by side
VBVANGUARD SMALL-CAP INDEX FUND
1,274
stock positions reported to the SEC
22.0% of its weight is in 143 names VXF does not hold
VXFVANGUARD EXTENDED MARKET INDEX FUND
1,792
stock positions reported to the SEC
21.6% of its weight is in 661 names VB does not hold
Where each fund's weight sits
Largest sectors for both funds
The widest gap is Technology: VXF has 3.8 points more of it.
The figures side by side
| VB | VXF | |
|---|---|---|
| Filing date | Jun 30, 2026 | Jun 30, 2026 |
| Stock positions reported | 1,274 | 1,792 |
| Weight of the ten largest | 4.3% | 7.6% |
| Largest position | CRDO 0.6% | SPCX 1.2% |
| Held alone | 143 positions, 22.0% | 661 positions, 21.6% |
| Covered by stock positions | 100% | 99% |
Holdings they share
| Stock | In VB | In VXF | Counted |
|---|---|---|---|
| CRDOCredo Technology Group Holding Ltd | 0.55% | 0.52% | 0.52% |
| ALABAstera Labs Inc | 0.45% | 0.76% | 0.45% |
| NTRANatera Inc | 0.45% | 0.46% | 0.45% |
| RVMDREVOLUTION Medicines Inc | 0.46% | 0.44% | 0.44% |
| TWLOTwilio Inc | 0.38% | 0.37% | 0.37% |
| CRSCarpenter Technology Corp | 0.35% | 0.36% | 0.35% |
| MKSIMKS Instruments Inc | 0.37% | 0.35% | 0.35% |
| CWCurtiss-Wright Corp | 0.34% | 0.33% | 0.33% |
| FTAIFTAI Aviation Ltd | 0.34% | 0.33% | 0.33% |
| ATIATI Inc | 0.33% | 0.32% | 0.32% |
What each holds alone
The heaviest positions one fund reports and the other does not.
Only in VB
Only in VXF
Questions people ask
Is VB the same as VXF?
74.8% of their weight sits in the same 1,131 holdings. VB also reports JBL, EME, NRG, which the other does not. VXF also reports SPCX, SNOW, BE, which the other does not.
How is the overlap between VB and VXF 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 99% of VXF, so the number cannot exceed the smaller coverage.
Which holds more, VXF or VB?
VB reports 1,274 stock positions and VXF reports 1,792. 22.0% of VB's weight sits in names VXF does not hold, and 21.6% of VXF's weight in names VB does not hold. The ten largest positions are 4.3% of VB and 7.6% of VXF.
How do VB and VXF differ by sector?
The widest gap is Technology: VXF has 3.8 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.
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.