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

In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and VGSH returned +1.8%, so VGSH returned more. One year is one year; the longer windows are in the table.

Which is cheaper, MBB or VGSH?

MBB charges 0.04% a year and VGSH charges 0.03%, so VGSH 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

MBB vs VGSH: how they differ

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

iShares MBS ETF and Vanguard Short-Term Treasury Index Fund.

What they hold in common

By the books each fund has filed, MBB and VGSH 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 MBB	Only in VGSH
Freddie Mac 1.07%	United States Treasury Note/Bond 2.26%
Government National Mortgage Association 0.97%	United States Treasury Note/Bond 1.41%
UMBS, TBA 0.85%	United States Treasury Note/Bond 1.36%
Government National Mortgage Association 0.69%	United States Treasury Note/Bond 1.32%
UMBS, TBA 0.66%	United States Treasury Note/Bond 1.31%
Government National Mortgage Association 0.56%	United States Treasury Note/Bond 1.30%
Government National Mortgage Association 0.55%	United States Treasury Note/Bond 1.27%
Government National Mortgage Association 0.54%	United States Treasury Note/Bond 1.27%

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 May 31, 2026.

MBB and VGSH on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	MBB iShares MBS ETF	VGSH Vanguard Short-Term Treasury Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	Mbs	Short-Term Treasury
Total return, 1 year	−0.1%	+1.8%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−17.6 pts	−15.7 pts
Expense ratio	0.04%	0.03%
Holdings	11144	91

MBB in plain words

MBB is a bond fund tracking the Mbs. Over the year to Sep 11, 2026 it returned −0.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% a year. It sat 3.3% below its high of Feb 27, 2026 on Sep 11, 2026.

VGSH in plain words

VGSH is a bond fund tracking the Short-Term Treasury. Over the year to Sep 11, 2026 it returned +1.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year.

Questions people ask

Which returned more over the last year, MBB or VGSH?: In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and VGSH returned +1.8%, so VGSH returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or VGSH?: MBB charges 0.04% a year and VGSH charges 0.03%, so VGSH 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.

MBB against VGSH, 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, MBB against VGSH, data as of Sep 12, 2026. https://etfiq.com/compare/any/MBB-VGSH Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources