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

In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and VONG returned +7.2%, so VONG returned more. One year is one year; the longer windows are in the table.

Which is cheaper, MBB or VONG?

MBB charges 0.04% a year and VONG charges 0.07%, so MBB 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 VONG: how they differ

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

iShares MBS ETF and Vanguard Russell 1000 Growth Index Fund.

What they hold in common

By the books each fund has filed, MBB and VONG 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 VONG
Freddie Mac 1.07%	NVIDIA Corp 13.09%
Government National Mortgage Association 0.97%	Apple Inc 11.97%
UMBS, TBA 0.85%	Microsoft Corp 8.98%
Government National Mortgage Association 0.69%	Broadcom Inc 5.78%
UMBS, TBA 0.66%	Amazon.com Inc 5.07%
Government National Mortgage Association 0.56%	Alphabet Inc 3.91%
Government National Mortgage Association 0.55%	Tesla Inc 3.48%
Government National Mortgage Association 0.54%	Meta Platforms Inc 3.20%

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 VONG on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	MBB iShares MBS ETF	VONG Vanguard Russell 1000 Growth Index Fund
Where it sits	Core index fund	Core index fund
Issuer	iShares	Vanguard
What it is	Mbs	Russell 1000 Growth
Total return, 1 year	−0.1%	+7.2%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−17.6 pts	−10.3 pts
Expense ratio	0.04%	0.07%
Holdings	11144	387

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.

VONG in plain words

VONG is an index equity fund tracking the Russell 1000 Growth. Over the year to Sep 11, 2026 it returned +7.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for May 31, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 387 positions, with the top ten at 61.3%. It sat 4.9% below its high of Jun 1, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, MBB or VONG?: In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and VONG returned +7.2%, so VONG returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or VONG?: MBB charges 0.04% a year and VONG charges 0.07%, so MBB 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 VONG, 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 VONG, data as of Sep 12, 2026. https://etfiq.com/compare/any/MBB-VONG Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources