VB vs VOO: how much do they overlap?
Vanguard Small-Cap ETF (VB) · Vanguard S&P 500 ETF (VOO)
overlap by weight · 122 shared holdings
VB: 1312 holdings (as of 2026-03-31) · VOO: 504 holdings (as of 2026-03-31)
Low overlap
What this means
VB and VOO hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in VB | in VOO |
|---|---|---|---|
| Ciena Corp | CIEN | 0.38% | 0.1% |
| Lumentum Holdings Inc | LITE | 0.35% | 0.09% |
| Comfort Systems USA Inc | FIX | 0.34% | 0.09% |
| Coherent Corp | COHR | 0.31% | 0.08% |
| EQT Corp | EQT | 0.28% | 0.07% |
| EMCOR Group Inc | EME | 0.46% | 0.06% |
| NRG Energy Inc | NRG | 0.43% | 0.06% |
| Atmos Energy Corp | ATO | 0.43% | 0.05% |
| Dow Inc | DOW | 0.21% | 0.05% |
| Tapestry Inc | TPR | 0.4% | 0.05% |
FAQ
How much do VB and VOO overlap?
VB and VOO have a 3.4% overlap by weight, sharing 122 holdings (out of 1312 in VB and 504 in VOO), based on official issuer holdings as of 2026-03-31.
What does 3.4% overlap mean?
VB and VOO hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do VB and VOO both hold?
The largest shared positions are Ciena Corp, Lumentum Holdings Inc, Comfort Systems USA Inc, Coherent Corp, EQT Corp. The full list of top shared holdings with weights in each fund is shown on this page.