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

In the year to Sep 13, 2026, with distributions reinvested, IGIB returned −1.0% and MBB returned −0.1%, so MBB returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IGIB or MBB?

IGIB charges 0.04% a year and MBB charges 0.04%, so IGIB 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

IGIB vs MBB: how they differ

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

iShares 5-10 Year Investment Grade Corporate Bond ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, IGIB and MBB 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 IGIB	Only in MBB
BLK CSH FND TREASURY SL AGENCY 0.60%	BLACKROCK CASH CL INST SL AGENCY 7.26%
ANHEUSER-BUSCH COMPANIES LLC 0.20%	GNMA2 SF 30YR 0.09%
SPACE EXPLORATION TECHNOLOGIES COR 144A 0.19%	GNMA II 30YR SF - JUMBO-CONFORMING 0.08%
PFIZER INVESTMENT ENTERPRISES PTE 0.18%	GNMA2 SINGLE FAMILY 30YR 0.04%
QTS FAYETTEVILLE I DC1-2 LLC 144A 0.15%	GNMA II 30YR 0.03%
JPMORGAN CHASE & CO MTN 0.13%	GNMA2 30YR TBA(REG C) 0.03%
MORGAN STANLEY (FXD-FRN) MTN 0.12%	UMBS 15YR TBA(REG B) 0.03%
WELLS FARGO & COMPANY (FXD-FRN) MTN 0.12%	FNMA 30YR UMBS MEGA REMIC SUPER 0.02%

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 Sep 10, 2026.

IGIB and MBB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF	MBB iShares MBS ETF
Where it sits	Core index fund	Core index fund
Issuer	iShares	iShares
What it is	5-10 Year Investment Grade Corporate Bond	Mbs
Total return, 1 year	−1.0%	−0.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−18.5 pts	−17.6 pts
Expense ratio	0.04%	0.04%
Holdings	2951	2599

IGIB in plain words

IGIB is a bond fund tracking the 5-10 Year Investment Grade Corporate Bond. Over the year to Sep 11, 2026 it returned −1.0% 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.

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.

Questions people ask

Which returned more over the last year, IGIB or MBB?: In the year to Sep 13, 2026, with distributions reinvested, IGIB returned −1.0% and MBB returned −0.1%, so MBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IGIB or MBB?: IGIB charges 0.04% a year and MBB charges 0.04%, so IGIB 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.

IGIB against MBB, 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, IGIB against MBB, data as of Sep 13, 2026. https://etfiq.com/compare/any/igib-vs-mbb Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources