ITOT vs VTI: how much do they overlap?
iShares Core S&P Total U.S. Stock Market ETF (ITOT) · Vanguard Total Stock Market ETF (VTI)
overlap by weight · 2416 shared holdings
ITOT: 2470 holdings (as of 2026-03-31) · VTI: 3503 holdings (as of 2026-03-31)
High overlap
What this means
ITOT and VTI are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
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 ITOT | in VTI |
|---|---|---|---|
| NVIDIA Corp. | NVDA | 6.69% | 6.42% |
| Apple, Inc. | AAPL | 5.88% | 5.94% |
| Microsoft Corp. | MSFT | 4.34% | 4.38% |
| Amazon.com, Inc. | AMZN | 3.21% | 3.21% |
| Alphabet, Inc. | GOOGL | 2.64% | 2.67% |
| Broadcom, Inc. | AVGO | 2.32% | 2.34% |
| Alphabet, Inc. | GOOG | 2.12% | 2.11% |
| Meta Platforms, Inc. | META | 1.98% | 2% |
| Tesla, Inc. | TSLA | 1.65% | 1.67% |
| Berkshire Hathaway, Inc. | BRK.B | 1.39% | 1.37% |
FAQ
How much do ITOT and VTI overlap?
ITOT and VTI have a 98.1% overlap by weight, sharing 2416 holdings (out of 2470 in ITOT and 3503 in VTI), based on official issuer holdings as of 2026-03-31.
What does 98.1% overlap mean?
ITOT and VTI are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do ITOT and VTI both hold?
The largest shared positions are NVIDIA Corp., Apple, Inc., Microsoft Corp., Amazon.com, Inc., Alphabet, Inc.. The full list of top shared holdings with weights in each fund is shown on this page.