DIA vs ITOT: how much do they overlap?
SPDR Dow Jones Industrial Average ETF Trust (DIA) · iShares Core S&P Total U.S. Stock Market ETF (ITOT)
overlap by weight · 29 shared holdings
DIA: 30 holdings (as of 09-Jul-2026) · ITOT: 2470 holdings (as of 2026-03-31)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
Low overlap
What this means
DIA and ITOT 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 DIA | in ITOT |
|---|---|---|---|
| Microsoft Corp | MSFT | 4.35% | 4.34% |
| Apple Inc | AAPL | 3.58% | 5.88% |
| Amazon.Com Inc | AMZN | 2.8% | 3.21% |
| Alphabet Inc Cl A | GOOGL | 4.06% | 2.64% |
| Nvidia Corp | NVDA | 2.29% | 6.69% |
| Jpmorgan Chase + Co | JPM | 3.8% | 1.25% |
| Johnson + Johnson | JNJ | 2.93% | 0.93% |
| Walmart Inc | WMT | 1.27% | 0.86% |
| Visa Inc Class A Shares | V | 3.94% | 0.8% |
| Chevron Corp | CVX | 1.97% | 0.61% |
FAQ
How much do DIA and ITOT overlap?
DIA and ITOT have a 26.4% overlap by weight, sharing 29 holdings (out of 30 in DIA and 2470 in ITOT), based on official issuer holdings as of 09-Jul-2026.
What does 26.4% overlap mean?
DIA and ITOT hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do DIA and ITOT both hold?
The largest shared positions are Microsoft Corp, Apple Inc, Amazon.Com Inc, Alphabet Inc Cl A, Nvidia Corp. The full list of top shared holdings with weights in each fund is shown on this page.