VB vs VOO: Holdings Overlap
VBVanguard Small-cap Index Fund
Vanguard · 1312 holdings · $82.5B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are VB and VOO?
Vanguard Small-cap Index Fund (VB, by Vanguard) holds 1312 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 122 holdings in common, and by portfolio weight the two funds are 3.4% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 122VB holds 1312 · VOO holds 504
- Weight in Shared Holdings
- VB 22%·VOO 3%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in VB
1190 of 1312 positions (77.8% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | VB | VOO |
|---|---|---|
| Information Technology | 13.8% | 32.7% |
| Industrials | 21.2% | 9.0% |
| Financials | 13.4% | 12.4% |
| Health Care | 11.6% | 9.5% |
| Consumer Discretionary | 10.5% | 9.9% |
| Other Sectors | 28.5% | 26.3% |
| Unclassified | 0.7% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (1% of VB, 0% of VOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VB | +2.5% | +19.5% | +29.1% | +15.9% | +8.1% | +11.3% | 1.18% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in VB vs VOO →
Shared Holdings(122)
The top 10 shared positions account for 21% of the overlap, led by CIEN, LITE and FIX.
 CIENCiena Corporation COM NEW | 0.38% | 0.10% | 0.10% |
|---|---|---|---|
 LITELumentum Holdings Inc. COM | 0.35% | 0.09% | 0.09% |
 FIXComfort Systems USA Inc. COM | 0.34% | 0.09% | 0.09% |
 COHRCoherent Corp COM | 0.31% | 0.08% | 0.08% |
 EQTEQT Corporation COM | 0.28% | 0.07% | 0.07% |
 EMEEmcor Group Inc COM | 0.46% | 0.06% | 0.06% |
 NRGNRG Energy, Inc. COM NEW | 0.43% | 0.06% | 0.06% |
 ATOAtmos Energy Corp. COM | 0.43% | 0.05% | 0.05% |
 DOWDow Inc COM | 0.21% | 0.05% | 0.05% |
 TPRTapestry Inc COM | 0.40% | 0.05% | 0.05% |
 JBLJabil Inc COM | 0.37% | 0.05% | 0.05% |
 TPLTexas Pacific Land Corporation COM | 0.19% | 0.05% | 0.05% |
 HUBBHubbell Incorporated COM | 0.18% | 0.05% | 0.05% |
 EXEExpand Energy Corp. COM | 0.37% | 0.05% | 0.05% |
 STLDSteel Dynamics, Inc. COM | 0.17% | 0.04% | 0.04% |
 QQnity Electronics Inc. COMMON STOCK | 0.17% | 0.04% | 0.04% |
 OMCOmnicom Group Inc COM | 0.33% | 0.04% | 0.04% |
 NINiSource Inc. COM | 0.16% | 0.04% | 0.04% |
 WSMWilliams-Sonoma Inc. COM | 0.30% | 0.04% | 0.04% |
 ALBAlbemarle Corp COM | 0.30% | 0.04% | 0.04% |
 FSLRFirst Solar Inc COM | 0.14% | 0.04% | 0.04% |
 SWSmurfit WestRock plc COM USD0.001 | 0.29% | 0.04% | 0.04% |
 LYBLyondellBasell Industries NV COM EUR0.04 CLASS 'A' | 0.15% | 0.04% | 0.04% |
 CFCF Industries Holdings, Inc. COM | 0.28% | 0.04% | 0.04% |
 LDOSLeidos Holdings Inc COM | 0.14% | 0.04% | 0.04% |
Frequently Asked Questions
How much do VB and VOO overlap?
VB and VOO overlap by 3.4% of portfolio weight. They share 122 holdings (VB holds 1312 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VB and VOO?
The two portfolios are 3.4% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of VB and VOO?
The largest positions held by both funds are CIEN, LITE, FIX, COHR and EQT. Together the top 10 shared positions account for 21% of the total overlap.
What does VB own that VOO doesn't?
1190 positions (77.8% of VB) are unique to VB, led by FTI, CASY and NTRA. In the other direction, 382 positions (96.4% of VOO) are unique to VOO.