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

In the year to Sep 13, 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 13, 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
BLACKROCK CASH CL INST SL AGENCY 7.26%	United States Treasury Note/Bond 2.26%
GNMA2 SF 30YR 0.09%	United States Treasury Note/Bond 1.41%
GNMA II 30YR SF - JUMBO-CONFORMING 0.08%	United States Treasury Note/Bond 1.36%
GNMA2 SINGLE FAMILY 30YR 0.04%	United States Treasury Note/Bond 1.32%
GNMA II 30YR 0.03%	United States Treasury Note/Bond 1.31%
GNMA2 30YR TBA(REG C) 0.03%	United States Treasury Note/Bond 1.30%
UMBS 15YR TBA(REG B) 0.03%	United States Treasury Note/Bond 1.27%
FNMA 30YR UMBS MEGA REMIC SUPER 0.02%	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 and Sep 10, 2026.

MBB and VGSH on the fields both publish, as of Sep 13, 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	2599	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 13, 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.

Other comparisons

Where to next

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 13, 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 13, 2026. https://etfiq.com/compare/any/mbb-vs-vgsh Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources