SPLG vs SPY: how much do they overlap?
SPDR Portfolio S&P 500 ETF (SPLG) · SPDR S&P 500 ETF Trust (SPY)
overlap by weight · 483 shared holdings
SPLG: 504 holdings · SPY: 504 holdings · data as of 29-Oct-2025
High overlap
What this means
SPLG and SPY 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 SPLG | in SPY |
|---|---|---|---|
| Nvidia Corp | NVDA | 8.58% | 7.57% |
| Apple Inc | AAPL | 6.8% | 7.16% |
| Microsoft Corp | MSFT | 6.84% | 4.4% |
| Amazon.Com Inc | AMZN | 3.8% | 3.73% |
| Broadcom Inc | AVGO | 3.08% | 2.93% |
| Alphabet Inc Cl A | GOOGL | 2.71% | 3.24% |
| Alphabet Inc Cl C | GOOG | 2.18% | 2.6% |
| Meta Platforms Inc Class A | META | 2.77% | 2.14% |
| Tesla Inc | TSLA | 2.2% | 1.76% |
| Berkshire Hathaway Inc Cl B | BRK.B | 1.48% | 1.4% |
FAQ
How much do SPLG and SPY overlap?
SPLG and SPY have a 87.9% overlap by weight, sharing 483 holdings (out of 504 in SPLG and 504 in SPY), based on official issuer holdings as of 29-Oct-2025.
What does 87.9% overlap mean?
SPLG and SPY are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do SPLG and SPY both hold?
The largest shared positions are Nvidia Corp, Apple Inc, Microsoft Corp, Amazon.Com Inc, Broadcom Inc. The full list of top shared holdings with weights in each fund is shown on this page.