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

In the year to Oct 28, 2026, with distributions reinvested, BNDX returned −0.9% and MBB −0.8%.

Which is cheaper, BNDX or MBB?

MBB 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

BNDX vs MBB: Differences, Returns & Fees

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BNDX's duration was 6.5 years on Jul 31, 2026 and MBB's 5.7 on Aug 31, 2026; MBB charges 0.04% to BNDX's 0.07%.

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Net assets: $82.9bn on Sep 30, 2026 for Vanguard Total International Bond ETF, and $35.5bn on Oct 28, 2026 for iShares MBS ETF.

BNDX on its own →MBB on its own →

At a glance

−0.9%

BNDX total return, 1 year

−0.8%

MBB total return, 1 year

0.07%

BNDX expense ratio

0.04%

MBB expense ratio

Pair scorecard

MBB costs 0.03 points a year less; their one-year returns differ by 0.1 points; BNDX is 2.3 times larger.

BNDX vs MBB: Differences, Returns & Fees
Measure	BNDX	MBB
Return
Measure	BNDX	MBB
Total return, 1 year	−0.9%	−0.8%
Benchmark
Measure	BNDX	MBB
What it tracks	Bloomberg Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged)	Bloomberg U.S. MBS Index
Cost and size
Measure	BNDX	MBB
Expense ratio	0.07%	0.04%
Net assets, as of Sep 30, 2026	$82.9bn	$36.2bn
Holdings
Measure	BNDX	MBB
Holdings in common	0%

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

What they share

By the books each fund has filed, BNDX and MBB hold 0% 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

0% in common

Positions both hold · largest shared weight first BNDX MBB

Only in one fund ↓

Only in BNDX

UK TSY GILT, due Mar 7, 2031 0.41%

FRANCE O.A.T., due Feb 25, 2031 0.37%

FRANCE O.A.T., due Feb 25, 2029 0.36%

UK TSY GILT, due Mar 7, 2030 0.36%

UK TSY GILT, due Mar 7, 2028 0.35%

UK TSY GILT, due Jul 22, 2029 0.34%

FRANCE O.A.T., due Nov 25, 2035 0.33%

FRANCE O.A.T., due Nov 25, 2032 0.33%

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 0.85%

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%

Check overlap with more funds →

Side by side

BNDX Vanguard Total International Bond ETF MBB iShares MBS ETF

Where it sits Bond ETF Bond ETF

Issuer Vanguard iShares

What it is Tracks an index of Total International Bond Tracks an index of mortgage-backed securities

Total return, 1 year −0.9% −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 0.07% 0.04%

Holdings 6840 10813

Net assets, BNDX as of Sep 30, 2026 and MBB as of Oct 28, 2026 $82.9bn $35.5bn

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

Alert

About each fund

BNDX

BNDX tracks an index of Total International Bond. Over the year to Oct 28, 2026 it returned −0.9% with distributions reinvested. The prospectus expense ratio is 0.07% a year.

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, BNDX or MBB?: In the year to Oct 28, 2026, with distributions reinvested, BNDX returned −0.9% and MBB −0.8%.
Which is cheaper, BNDX or MBB?: MBB 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

BNDX vs VGSH BNDX vs VGIT BNDX vs LQD BNDX vs GOVT MBB vs VGIT MBB vs VGSH MBB vs SHY MBB vs USHY

Where to next

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

Sources and dates

BNDX filings on SEC EDGAR ↗

BNDX prospectus with the expense ratio (SEC) ↗

Vanguard page for BNDX ↗

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

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