etf overlap · heavy overlap

SPY vs SPYG overlap

67% of SPY and SPYG is the same money, spread over 151 companies both funds hold.

Holdings as of September 24, 2026 · source: SPDR (SPY), SPDR (SPYG) · How we measured all 1,035 pairs

overlapfull holdings, by weight
67%of each fund is money the other holds at the same weight, across 151 shared companies.
SPY
67%32%
SPYG
67%33%
  • same money
  • same companies, extra weight
  • only in this fund
Overlap = the sum, over companies both funds hold, of the smaller of the two weights. Cash and derivatives excluded.
01Shared

The companies you would own twice

held by bothtop 15 of 151
companySPYSPYG
NVIDIA CORP logoNVDANVIDIA CORP8.19%14.58%
APPLE INC logoAAPLAPPLE INC7.38%6.81%
ALPHABET INC CL C logoGOOGALPHABET INC CL C2.43%4.45%
TESLA INC logoTSLATESLA INC1.60%1.75%
02Different

What only one of them gives you

03Sectors

Where each fund puts its money

sectorsSPY vs SPYG, share of each fund
Information Technology39.20%53.19%
Communication Services10.07%15.64%
Financials11.57%8.71%
Consumer Discretionary8.65%7.97%
Health Care9.28%6.32%
Industrials8.09%5.76%
Consumer Staples4.39%1.13%
Energy3.43%0.00%
Real Estate1.72%0.59%
Utilities1.86%0.34%
Materials1.69%0.32%
04Questions

SPY and SPYG: what people ask

questions4 answered

How much do SPY and SPYG overlap?

67% by weight, as of September 24, 2026: heavy overlap. 151 companies appear in both funds; they make up 68% of SPY and 100% of SPYG.

Which stocks do SPY and SPYG both hold?

The largest shared positions are NVDA, AAPL, MSFT, AMZN and GOOGL. Ranked by the smaller of the two weights, which is the part you would own twice.

Is it redundant to hold both SPY and SPYG?

Out of every $100 split evenly between them, about $67 (half in each fund) buys identical positions. The rest is exposure only one of the two funds gives you: 353 names only in SPY, 1 only in SPYG. Half in each behaves like 28 equally weighted stocks, against 44 for SPY alone and 19 for SPYG alone. Whether that duplication is a problem depends on the mix you want; this is a description, not advice.

How is ETF overlap calculated here?

For every company held by both funds we take the smaller of its two weights and add them up. The weights come from the full holdings files SPDR publish, not a top-10 sample, and companies are matched by their ISIN so share classes stay apart. Sector overlap applies the same rule to the issuers' sector labels; "behaves like N equally weighted stocks" is one over the sum of the squared weights.

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Weights come from each issuer's published holdings file and are matched company by company on their ISIN. Cash, futures and currency positions are left out. This page describes what the funds hold; it is not investment advice.