SPY vs VTI: how much do they overlap?
SPDR S&P 500 ETF Trust (SPY) · Vanguard Total Stock Market ETF (VTI)
overlap by weight · 495 shared holdings
SPY: 504 holdings (as of 09-Jul-2026) · VTI: 3503 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.
High overlap
What this means
SPY 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 SPY | in VTI |
|---|---|---|---|
| Nvidia Corp | NVDA | 7.57% | 6.42% |
| Apple Inc | AAPL | 7.16% | 5.94% |
| Microsoft Corp | MSFT | 4.4% | 4.38% |
| Amazon.Com Inc | AMZN | 3.73% | 3.21% |
| Alphabet Inc Cl A | GOOGL | 3.24% | 2.67% |
| Broadcom Inc | AVGO | 2.93% | 2.34% |
| Alphabet Inc Cl C | GOOG | 2.6% | 2.11% |
| Meta Platforms Inc Class A | META | 2.14% | 2% |
| Tesla Inc | TSLA | 1.76% | 1.67% |
| Berkshire Hathaway Inc Cl B | BRK.B | 1.4% | 1.37% |
FAQ
How much do SPY and VTI overlap?
SPY and VTI have a 84.3% overlap by weight, sharing 495 holdings (out of 504 in SPY and 3503 in VTI), based on official issuer holdings as of 09-Jul-2026.
What does 84.3% overlap mean?
SPY and VTI are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do SPY and VTI both hold?
The largest shared positions are Nvidia Corp, Apple Inc, Microsoft Corp, Amazon.Com Inc, Alphabet Inc Cl A. The full list of top shared holdings with weights in each fund is shown on this page.