Which returned more over the last year, IUSB or SPY?

In the year to Sep 12, 2026, with distributions reinvested, IUSB returned −0.3% and SPY returned +17.5%, so SPY returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IUSB or SPY?

IUSB charges 0.06% a year and SPY charges 0.09%, so IUSB is cheaper. Fees come from each fund's prospectus.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IUSB vs SPY: how they differ

IUSB and SPY hold 0% of their weight in the same names, and SPY returned more over the year.

iShares Core Universal USD Bond ETF and SPDR S&P 500 ETF Trust.

What they hold in common

By the books each fund has filed, IUSB and SPY hold 0% of their money in the same securities at the same weight.

Largest positions each one holds and the other does not
Only in IUSB	Only in SPY
United States of America 0.38%	NVIDIA Corp. 7.52%
United States of America 0.37%	Apple, Inc. 6.59%
United States of America 0.37%	Microsoft Corp. 4.30%
United States of America 0.37%	Amazon.com, Inc. 3.62%
United States of America 0.36%	Alphabet, Inc. 3.25%
United States of America 0.36%	Broadcom, Inc. 2.77%
United States of America 0.36%	Alphabet, Inc. 2.59%
United States of America 0.35%	Micron Technology, Inc. 2.02%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Apr 30, 2026 and Jun 30, 2026.

IUSB and SPY on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IUSB iShares Core Universal USD Bond ETF	SPY SPDR S&P 500 ETF Trust
Where it sits	Core index fund	Core index fund
Issuer	iShares	State Street
What it is	Core Universal USD Bond	S&P 500, book from IVV
Total return, 1 year	−0.3%	+17.5%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−17.8 pts	0.0 pts
Expense ratio	0.06%	0.09%
Holdings	17819	504

IUSB in plain words

IUSB is a bond fund tracking the Core Universal USD Bond. Over the year to Sep 11, 2026 it returned −0.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year.

SPY in plain words

SPY is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.5% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.09% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 36.4%.

Questions people ask

Which returned more over the last year, IUSB or SPY?: In the year to Sep 12, 2026, with distributions reinvested, IUSB returned −0.3% and SPY returned +17.5%, so SPY returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IUSB or SPY?: IUSB charges 0.06% a year and SPY charges 0.09%, so IUSB is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

IUSB against SPY, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IUSB against SPY, data as of Sep 12, 2026. https://etfiq.com/compare/any/IUSB-SPY Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources