Which returned more over the last year, IYE or MBB?

In the year to Oct 28, 2026, with distributions reinvested, IYE returned +58.8% and MBB −0.8%.

Which is cheaper, IYE or MBB?

MBB is cheaper, by 0.33 percentage points a year. That is about $33 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

IYE vs MBB: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IYE returned +58.8% to MBB's −0.8%; 0% of their weight is in the same names.

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Net assets on Oct 28, 2026: $1.8bn for iShares U.S. Energy ETF and $35.5bn for iShares MBS ETF.

IYE on its own →MBB on its own →

At a glance

+58.8%

IYE total return, 1 year

−0.8%

MBB total return, 1 year

0.37%

IYE expense ratio

0.04%

MBB expense ratio

Pair scorecard

MBB costs 0.33 points a year less; their one-year returns differ by 59.6 points; MBB is 19.7 times larger.

IYE vs MBB: Differences, Returns & Fees
Measure	IYE	MBB
Return
Measure	IYE	MBB
Total return, 1 year	+58.8%	−0.8%
Benchmark
Measure	IYE	MBB
What it tracks	Russell 1000 Energy RIC 22	Bloomberg U.S. MBS Index
Cost and size
Measure	IYE	MBB
Expense ratio	0.37%	0.04%
Net assets	$1.8bn	$35.5bn
Holdings
Measure	IYE	MBB
Holdings in common	0%
In the S&P 500, by weight	67%
Top ten holdings, share of the fund	71.5%

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

What they share

By the books each fund has filed, IYE and MBB 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 IYE MBB

Only in one fund ↓

Only in IYE

EXXONMOBIL HOLDINGS CORP 23.48%

CHEVRON 16.24%

CONOCOPHILLIPS 6.74%

MARATHON PETROLEUM 4.68%

VALERO ENERGY CORP 4.07%

PHILLIPS 66 3.97%

WILLIAMS 3.37%

EOG RESOURCES 3.28%

Only in MBB

BLACKROCK CASH CL INST SL AGENCY 5.45%

FHLMC 30YR UMBS SUPER 1.05%

UMBS 30YR TBA(REG A) 0.60%

GNMA2 30YR 0.59%

GNMA2 30YR 0.54%

FNMA 30YR UMBS 0.53%

GNMA2 30YR 0.53%

GNMA2 30YR 0.52%

Check overlap with more funds →

Side by side

IYE iShares U.S. Energy ETF MBB iShares MBS ETF

Where it sits Stock ETF Bond ETF

Issuer iShares iShares

What it is Tracks an index of U.S. Energy Tracks an index of mortgage-backed securities

Total return, 1 year +58.8% −0.8%

Its benchmark over the same days not measured −1.1% (SPMB)

Gap to its benchmark not measured +0.3 pts vs SPMB

Expense ratio 0.37% 0.04%

Holdings 41 10813

Net assets $1.8bn $35.5bn

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

Alert

About each fund

IYE

IYE tracks an index of U.S. Energy. Over the year to Oct 28, 2026 it returned +58.8% with distributions reinvested. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 27, 2026, 67% of the fund by weight is stocks the S&P 500 also holds, across 41 positions, with the top ten at 71.5%.

MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

Questions people ask

Which returned more over the last year, IYE or MBB?: In the year to Oct 28, 2026, with distributions reinvested, IYE returned +58.8% and MBB −0.8%.
Which is cheaper, IYE or MBB?: MBB is cheaper, by 0.33 percentage points a year. That is about $33 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

IYE vs TLT IYE vs VTIP IYE vs PULS IYE vs USFR MBB vs XOP MBB vs VDE MBB vs XLE MBB vs XHB

Where to next

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

Sources and dates

IYE and MBB filings on SEC EDGAR ↗

IYE prospectus with the expense ratio (SEC) ↗

iShares page for IYE ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

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, IYE against MBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/iye-vs-mbb

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