DIA vs VT: how much do they really overlap?
DIA (SPDR Dow Jones Industrial Average ETF, tracking the Dow Jones Industrial Average) and VT (Vanguard Total World Stock ETF, tracking the FTSE Global All Cap) overlap by roughly 41% by weight. 7 of DIA's top 10 holdings also appear in VT. A 50/50 blend of the two behaves like about 57 equally-weighted bets (diversification grade B). In short, the two funds share a meaningful core of the same megacaps, but each also brings real exposure the other lacks.
The same companies, in both funds
These 15 holdings appear in both DIA and VT. The weight columns show how much of each fund each name represents.
| Holding | in DIA | in VT |
|---|---|---|
| AAPL Apple Inc. | 3.21% | 3.57% |
| MSFT Microsoft Corporation | 4.20% | 2.37% |
| NVDA NVIDIA Corporation | 2.22% | 3.99% |
| AMZN Amazon.com, Inc. | 2.73% | 1.97% |
| GOOGL Alphabet Inc. | 4.03% | 1.80% |
| JPM JPMorgan Chase & Co. | 3.75% | 0.69% |
| JNJ Johnson & Johnson | 2.94% | 0.52% |
| V Visa Inc. | 3.89% | 0.48% |
| CAT Caterpillar Inc. | 11.76% | 0.41% |
| UNH UnitedHealth Group Incorporated | 4.78% | 0.32% |
| HD The Home Depot, Inc. | 3.99% | 0.30% |
| PG The Procter & Gamble Company | 1.69% | 0.29% |
| MRK Merck & Co., Inc. | 1.47% | 0.27% |
| CVX Chevron Corporation | 1.92% | 0.26% |
| GS The Goldman Sachs Group, Inc. | 11.61% | 0.24% |
Only in DIA
SPDR Dow Jones Industrial Average ETF — US blue-chip (Dow 30). Its biggest holdings that VT doesn’t have:
| AMGN Amgen Inc. | 4.10% |
| SHW The Sherwin-Williams Company | 3.92% |
| AXP American Express Company | 3.88% |
| TRV The Travelers Companies, Inc. | 3.78% |
| IBM International Business Machines Corporation | 3.16% |
| MCD McDonald's Corporation | 3.04% |
| HON Honeywell International Inc. | 2.59% |
| BA The Boeing Company | 2.44% |
Only in VT
Vanguard Total World Stock ETF — global all-cap. Its biggest holdings that DIA doesn’t have:
| 2330 Taiwan Semiconductor Manufacturing Co. Ltd. | 1.64% |
| AVGO Broadcom Inc. | 1.50% |
| GOOG Alphabet Inc. Class C | 1.41% |
| MU Micron Technology Inc. | 1.11% |
| META Facebook Inc. Class A | 1.06% |
| TSLA Tesla Inc. | 1.05% |
| 005930 Samsung Electronics Co. Ltd. | 0.88% |
| 000660 SK hynix Inc. | 0.84% |
So — partly overlapping. Should you hold both?
DIA and VT share a meaningful core of the same megacaps, but each also brings real exposure the other lacks. Held together they keep a shared megacap core but each still pulls in exposure the other lacks, so a 50/50 blend spreads to ~57 effective positions (grade B).
Holdings as of — DIA: Jun 29, 2026 (State Street Global Advisors); VT: Jun 30, 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 →DIA vs VT — FAQ
- How much do DIA and VT overlap?
- DIA and VT overlap by approximately 41% measured by portfolio weight — that is the share of the smaller fund's holdings (by weight) that also sit inside the other. 7 of DIA's 10 largest holdings are also held by VT. They share 15 of their listed top holdings in total.
- Is it redundant to hold both DIA and VT?
- Because they share a meaningful core of the same megacaps, but each also brings real exposure the other lacks, holding both is partly redundant: you double up on a shared core (AAPL) while each fund still adds distinct exposure. A 50/50 blend has an effective 57 positions and a B diversification grade.
- What does VT hold that DIA doesn't?
- VT's largest holdings that DIA doesn't hold include 2330, AVGO, GOOG, MU, META. Its category is global all-cap, versus DIA's US blue-chip (Dow 30).
- Which is more concentrated, DIA or VT?
- DIA's top 10 holdings are 59% of its listed weight; VT's are 55%. The more concentrated fund leans harder on its largest names.