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

In the year to Oct 28, 2026, with distributions reinvested, BINC returned +0.5% and MBB −0.8%.

Which is cheaper, BINC or MBB?

MBB is cheaper, by 0.36 percentage points a year. That is about $36 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

BINC vs MBB: Differences, Returns & Fees

Share on X Download as PDF

BINC's duration was 2.9 years on Jul 31, 2026 and MBB's 5.7 on Aug 31, 2026; MBB charges 0.04% to BINC's 0.40%.

askIQ about this page

askIQ about BINC and MBB

Net assets: $16.8bn on Oct 27, 2026 for iShares Flexible Income Active ETF, and $35.5bn on Oct 28, 2026 for iShares MBS ETF.

BINC on its own →MBB on its own →

At a glance

+0.5%

BINC total return, 1 year

−0.8%

MBB total return, 1 year

0.40%

BINC expense ratio

0.04%

MBB expense ratio

Pair scorecard

MBB costs 0.36 points a year less; their one-year returns differ by 1.3 points; MBB is 2.1 times larger.

BINC vs MBB: Differences, Returns & Fees
Measure	BINC	MBB
Return
Measure	BINC	MBB
Total return, 1 year	+0.5%	−0.8%
Benchmark
Measure	BINC	MBB
What it tracks	No index, actively managed	Bloomberg U.S. MBS Index
Cost and size
Measure	BINC	MBB
Expense ratio	0.40%	0.04%
Net assets, as of Oct 26, 2026	$16.8bn	$35.6bn
Holdings
Measure	BINC	MBB
Holdings in common	1%
In the S&P 500, by weight	0%
Top ten holdings, share of the fund	24.6%

Holdings in common uses holdings dated Jul 31, 2026 and Aug 31, 2026. Method

What they share

By the books each fund has filed, BINC and MBB hold 1% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026 and Aug 31, 2026.

50%

0 half 100%

half

1% in common

Positions both hold · largest shared weight first BINC MBB

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 3.48% 0.85%

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.31% 0.06%

Only in one fund ↓

Only in BINC

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 6.83%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 2.35%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 1.57%

iShares iBoxx USD High Yield Corporate Bond ETF 1.46%

Italy Buoni Poliennali Del Tesoro, due Feb 1, 2031 1.32%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 1.10%

iShares iBoxx USD Investment Grade Corporate Bond ETF 1.06%

Spain Government Bonds, due Apr 30, 2036 0.97%

Only in MBB

Ginnie Mae, due Sep 1, 2056 1.05%

Freddie Mac Pool, due May 1, 2051 0.98%

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.70%

Ginnie Mae, due Sep 1, 2056 0.53%

Ginnie Mae II Pool, due Nov 20, 2054 0.51%

Ginnie Mae II Pool, due Oct 20, 2051 0.51%

Ginnie Mae II Pool, due Dec 20, 2051 0.50%

Ginnie Mae, due Sep 1, 2056 0.49%

Check overlap with more funds →

Side by side

BINC iShares Flexible Income Active ETF MBB iShares MBS ETF

Where it sits Bond ETF Bond ETF

Issuer iShares iShares

What it is Actively managed Tracks an index of mortgage-backed securities

Total return, 1 year +0.5% −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 0.40% 0.04%

Holdings 4690 10813

Net assets, BINC as of Oct 27, 2026 and MBB as of Oct 28, 2026 $16.8bn $35.5bn

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

Alert

About each fund

BINC

BINC is actively managed and tracks no index. Over the year to Oct 28, 2026 it returned +0.5% with distributions reinvested. The prospectus expense ratio is 0.40% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 4,690 positions, with the top ten at 24.6%.

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, BINC or MBB?: In the year to Oct 28, 2026, with distributions reinvested, BINC returned +0.5% and MBB −0.8%.
Which is cheaper, BINC or MBB?: MBB is cheaper, by 0.36 percentage points a year. That is about $36 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

BINC vs PFF BINC vs SGOV BINC vs BND BINC vs HYS IEI vs MBB MBB vs SCHP HYG vs MBB MBB vs VMBS

Where to next

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

Sources and dates

BINC filings on SEC EDGAR ↗

BINC prospectus with the expense ratio (SEC) ↗

iShares page for BINC ↗

MBB filings on SEC EDGAR ↗

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

Open data →

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