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SPY vs SUSA: Differences, Returns & Fees

SPY and SUSA hold 59% of their weight in the same names. Net assets: $817.2bn on Oct 8, 2026 for SPDR S&P 500 ETF Trust, and $4.1bn on Oct 9, 2026 for iShares ESG Optimized MSCI USA ETF.

SPY costs 0.16 points a year less; their one-year returns differ by 0.3 points; SPY is far larger, $817.2bn against $4.1bn.

SPY vs SUSA: Differences, Returns & Fees
SPYSUSA
Expense ratio0.09%0.25%
Net assets, as of Oct 8, 2026$817.2bn$4.1bn
Total return, 1 year+17.3%+17.6%
What it tracksS&P 500 IndexMSCI USA Extended ESG Select Index
Holdings in common59%
Top ten holdings, share of the fund39.1%32.7%

Holdings in common uses holdings dated Oct 8, 2026 and Oct 9, 2026.

+17.3%
SPY total return, 1 year
+17.6%
SUSA total return, 1 year
0.09%
SPY expense ratio
0.25%
SUSA expense ratio

What they hold in common

By the books each fund has filed, SPY and SUSA hold 59% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 8, 2026 and Oct 9, 2026.

half

59% in common

Positions both hold, largest shared weight first
Holding SPY SUSA
NVIDIA CORP 8.34% 7.48%
APPLE INC 7.42% 6.60%
MICROSOFT CORP 5.80% 4.62%
BROADCOM INC 2.56% 2.59%
ALPHABET INC CL C 2.45% 3.23%
ALPHABET INC CL A 3.06% 1.78%
MICRON TECHNOLOGY INC 1.75% 1.70%
TESLA INC 1.58% 1.65%
ADVANCED MICRO DEVICES 1.51% 1.65%
ELI LILLY + CO 1.40% 1.40%
VISA INC CLASS A SHARES 0.96% 1.26%
INTEL CORP 0.80% 0.76%
Only in SPY
AMAZON.COM INC 3.73%
META PLATFORMS INC CLASS A 2.38%
BERKSHIRE HATHAWAY INC CL B 1.42%
JPMORGAN CHASE + CO 1.32%
EXXONMOBIL HOLDINGS CORP 1.04%
JOHNSON + JOHNSON 0.92%
WALMART INC 0.74%
ABBVIE INC 0.72%
Only in SUSA
CHENIERE ENERGY 0.71%
CLOUDFLARE CLASS A 0.42%
TECHNIPFMC PLC 0.37%
MERCADOLIBRE 0.31%
OKTA CLASS A 0.29%
SNOWFLAKE 0.28%
MONGODB CLASS A 0.18%
ZSCALER 0.17%

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On the same fields

SPY
SPDR S&P 500 ETF Trust
SUSA
iShares ESG Optimized MSCI USA ETF
Where it sits Stock ETF Stock ETF
Issuer State Street iShares
What it is Tracks the S&P 500 Tracks an index
Total return, 1 year +17.3% +17.6%
Its benchmark over the same days +17.3% (VOO) not published
Gap to its benchmark −0.1 pts vs VOO not available
Expense ratio 0.09% 0.25%
Already in the S&P 500 99.8% 96.3%
Holdings 504 204
Net assets, SPY as of Oct 8, 2026 and SUSA as of Oct 9, 2026 $817.2bn $4.1bn

SPY and SUSA on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

About SPY

SPY tracks the S&P 500. Over the year to Oct 9, 2026 it returned +17.3% with distributions reinvested, against +17.3% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.09% a year. By its holdings published by its issuer for Oct 8, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 39.1%.

About SUSA

SUSA tracks an index. Over the year to Oct 9, 2026 it returned +17.6% with distributions reinvested. The prospectus expense ratio is 0.25% a year. By its holdings published by its issuer for Oct 9, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 204 positions, with the top ten at 32.7%.

Questions people ask

Which returned more over the last year, SPY or SUSA?
In the year to Oct 9, 2026, with distributions reinvested, SPY returned +17.3% and SUSA +17.6%.
Which is cheaper, SPY or SUSA?
SPY is cheaper, by 0.16 percentage points a year. That is about $16 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do SPY and SUSA overlap with the S&P 500?
By their latest filed holdings, 100% of SPY and 96% of SUSA by weight is stocks the S&P 500 already holds.
Other comparisons
GRNY vs SPYSPY vs TSPASPY vs USCASPY vs VTHRIVV vs SUSASUSA vs VTISUSA vs VOOSPYM vs SUSA
SPY on its own →SUSA on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
SPY filings on SEC EDGAR ↗State Street website ↗SUSA filings on SEC EDGAR ↗SUSA prospectus with the expense ratio (SEC) ↗iShares page for SUSA ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, SPY against SUSA, data as of Oct 9, 2026. https://etfiq.com/compare/any/spy-vs-susa

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.