VB vs VGT: how much do they really overlap?
VB (Vanguard Small-Cap ETF, tracking the CRSP US Small Cap) and VGT (Vanguard Information Technology ETF, tracking the MSCI US IMI Info Tech 25/50) overlap by roughly 7% by weight. 3 of VB's top 10 holdings also appear in VGT. A 50/50 blend of the two behaves like about 57 equally-weighted bets (diversification grade B). In short, the two funds hold almost none of the same securities — they are complementary, not redundant.
The same companies, in both funds
These 4 holdings appear in both VB and VGT. The weight columns show how much of each fund each name represents.
| Holding | in VB | in VGT |
|---|---|---|
| CIEN Ciena Corp. | 0.51% | 0.36% |
| COHR Coherent Corp. | 0.42% | 0.27% |
| LITE Lumentum Holdings Inc. | 0.38% | 0.27% |
| FLEX Flex Ltd. | 0.69% | 0.26% |
Only in VB
Vanguard Small-Cap ETF — US small-cap. Its biggest holdings that VGT doesn’t have:
| ALAB Astera Labs Inc. | 0.62% |
| RKLB Rocket Lab Corp. | 0.50% |
| CRDO Credo Technology Group Holding Ltd. | 0.48% |
| BE Bloom Energy Corp. Class A | 0.47% |
| EME EMCOR Group Inc. | 0.46% |
| JBL Jabil Inc. | 0.45% |
| FIX Comfort Systems USA Inc. | 0.40% |
| RVMD Revolution Medicines Inc. | 0.39% |
Only in VGT
Vanguard Information Technology ETF — US tech sector. Its biggest holdings that VB doesn’t have:
| NVDA NVIDIA Corp. | 16.78% |
| AAPL Apple Inc. | 15.26% |
| MSFT Microsoft Corp. | 9.87% |
| AVGO Broadcom Inc. | 4.49% |
| MU Micron Technology Inc. | 4.19% |
| AMD Advanced Micro Devices Inc. | 3.20% |
| INTC Intel Corp. | 1.95% |
| CSCO Cisco Systems Inc. | 1.85% |
So — essentially different. Should you hold both?
VB and VGT hold almost none of the same securities — they are complementary, not redundant. Held together they genuinely broaden your exposure — a 50/50 blend reaches ~57 effective positions (grade B), because they hold largely different securities.
Holdings as of — VB: May 31, 2026 (Vanguard); VGT: May 31, 2026 (Vanguard). Refreshed monthly. Overlap is measured across each fund’s largest holdings (top 50); the diffuse long tail barely moves the math.
See this for YOUR whole portfolio, free →VB vs VGT — FAQ
- How much do VB and VGT overlap?
- VB and VGT overlap by approximately 7% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 3 of VB's 10 largest holdings are also held by VGT. They share 4 of their listed top holdings in total.
- Is it redundant to hold both VB and VGT?
- Because they hold almost none of the same securities — they are complementary, not redundant, holding both is not redundant — each fund covers largely different holdings, so together they broaden your exposure. A 50/50 blend has an effective 57 positions and a B diversification grade.
- What does VGT hold that VB doesn't?
- VGT's largest holdings that VB doesn't hold include NVDA, AAPL, MSFT, AVGO, MU. Its category is US tech sector, versus VB's US small-cap.
- Which is more concentrated, VB or VGT?
- VB's top 10 holdings are 29% of its listed weight; VGT's are 72%. The more concentrated fund leans harder on its largest names.