ITOT vs IVV: how much do they overlap?
iShares Core S&P Total U.S. Stock Market ETF (ITOT) · iShares Core S&P 500 ETF (IVV)
overlap by weight · 503 shared holdings
ITOT: 2470 holdings (as of 2026-03-31) · IVV: 503 holdings (as of 2026-03-31)
High overlap
What this means
ITOT and IVV 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 IVV |
|---|---|---|---|
| NVIDIA Corp. | NVDA | 6.69% | 7.56% |
| Apple, Inc. | AAPL | 5.88% | 6.65% |
| Microsoft Corp. | MSFT | 4.34% | 4.91% |
| Amazon.com, Inc. | AMZN | 3.21% | 3.63% |
| Alphabet, Inc. | GOOGL | 2.64% | 2.99% |
| Broadcom, Inc. | AVGO | 2.32% | 2.62% |
| Alphabet, Inc. | GOOG | 2.12% | 2.39% |
| Meta Platforms, Inc. | META | 1.98% | 2.23% |
| Tesla, Inc. | TSLA | 1.65% | 1.87% |
| Berkshire Hathaway, Inc. | BRK.B | 1.39% | 1.57% |
FAQ
How much do ITOT and IVV overlap?
ITOT and IVV have a 88.2% overlap by weight, sharing 503 holdings (out of 2470 in ITOT and 503 in IVV), based on official issuer holdings as of 2026-03-31.
What does 88.2% overlap mean?
ITOT and IVV are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do ITOT and IVV 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.