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

In the year to Oct 28, 2026, with distributions reinvested, IUSB returned −1.2% and SPY +13.6%.

Which is cheaper, IUSB or SPY?

IUSB is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

IUSB vs SPY: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IUSB returned −1.2% to SPY's +13.6%; 0% of their weight is in the same names.

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Net assets on Oct 27, 2026: $49.8bn for iShares Core Universal USD Bond ETF and $814.8bn for SPDR S&P 500 ETF Trust.

IUSB on its own →SPY on its own →

At a glance

−1.2%

IUSB total return, 1 year

+13.6%

SPY total return, 1 year

0.06%

IUSB expense ratio

0.09%

SPY expense ratio

Pair scorecard

IUSB costs 0.03 points a year less; their one-year returns differ by 14.8 points; SPY is 16.4 times larger.

IUSB vs SPY: Differences, Returns & Fees
Measure	IUSB	SPY
Return
Measure	IUSB	SPY
Total return, 1 year	−1.2%	+13.6%
Benchmark
Measure	IUSB	SPY
What it tracks	Bloomberg U.S. Universal Index	S&P 500 Index
Cost and size
Measure	IUSB	SPY
Expense ratio	0.06%	0.09%
Net assets, as of Oct 27, 2026	$49.8bn	$814.8bn
Holdings
Measure	IUSB	SPY
Holdings in common	0%
In the S&P 500, by weight		100%
Top ten holdings, share of the fund		38.1%

Holdings in common uses holdings dated Oct 27, 2026. Method

What they share

By the books each fund has filed, IUSB and SPY hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

50%

0 half 100%

half

0% in common

Positions both hold · largest shared weight first IUSB SPY

Only in one fund ↓

Only in IUSB

BLK Liquidity Temp Cash Inst #21 4.75%

TREASURY NOTE 0.49%

TREASURY NOTE 0.42%

TREASURY NOTE 0.41%

TREASURY NOTE 0.38%

TREASURY NOTE 0.37%

TREASURY NOTE (2OLD) 0.36%

UMBS 15YR TBA(REG B) 0.35%

Only in SPY

NVIDIA CORP 7.92%

APPLE INC 7.61%

MICROSOFT CORP 5.93%

AMAZON.COM INC 3.73%

ALPHABET INC CL A 2.83%

BROADCOM INC 2.45%

ALPHABET INC CL C 2.26%

META PLATFORMS INC CLASS A 2.06%

Check overlap with more funds →

Side by side

IUSB iShares Core Universal USD Bond ETF SPY SPDR S&P 500 ETF Trust

Where it sits Bond ETF Stock ETF

Issuer iShares State Street

What it is Tracks an index of Universal USD Bond Tracks the S&P 500

Total return, 1 year −1.2% +13.6%

Its benchmark over the same days not measured +13.7% (VOO)

Gap to its benchmark not measured −0.1 pts vs VOO

Expense ratio 0.06% 0.09%

Holdings 18338 504

Net assets, as of Oct 27, 2026 $49.8bn $814.8bn

IUSB and SPY on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Alert

About each fund

IUSB

IUSB tracks an index of Universal USD Bond. Over the year to Oct 28, 2026 it returned −1.2% with distributions reinvested. The prospectus expense ratio is 0.06% a year.

SPY

SPY tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.6% with distributions reinvested, against +13.7% 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 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 38.1%.

Questions people ask

Which returned more over the last year, IUSB or SPY?: In the year to Oct 28, 2026, with distributions reinvested, IUSB returned −1.2% and SPY +13.6%.
Which is cheaper, IUSB or SPY?: IUSB is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

IUSB vs IVV IUSB vs VTI IUSB vs VOO IUSB vs SCHX BOND vs SPY SGOV vs SPY SPY vs TIP SPY vs VBIL

Where to next

IUSB on its own →SPY on its own →Hold both: look the portfolio through →Rankings →IUSB dividend history →IUSB holdings →SPY dividend history →SPY holdings →Standards and sources →

Sources and dates

IUSB filings on SEC EDGAR ↗

IUSB prospectus with the expense ratio (SEC) ↗

iShares page for IUSB ↗

SPY filings on SEC EDGAR ↗

State Street website ↗

Links are sources, not endorsements. 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, IUSB against SPY, data as of Oct 28, 2026. https://etfiq.com/compare/any/iusb-vs-spy

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