Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
MBB vs SHV: how they differ
MBB and SHV hold 0% of their weight in the same names, and SHV returned more over the year.
iShares MBS ETF and iShares 0-1 Year Treasury Bond ETF.
What they hold in common
By the books each fund has filed, MBB and SHV hold 0% of their money in the same securities at the same weight.
| Only in MBB | Only in SHV |
|---|---|
| BLACKROCK CASH CL INST SL AGENCY 7.26% | BLK CSH FND TREASURY SL AGENCY 1.04% |
| GNMA2 SF 30YR 0.09% | TREASURY NOTE 0.47% |
| GNMA II 30YR SF - JUMBO-CONFORMING 0.08% | TREASURY BILL 0.06% |
| GNMA2 SINGLE FAMILY 30YR 0.04% | |
| GNMA II 30YR 0.03% | |
| GNMA2 30YR TBA(REG C) 0.03% | |
| UMBS 15YR TBA(REG B) 0.03% | |
| 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.
| MBB iShares MBS ETF | SHV iShares 0-1 Year Treasury Bond ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | Mbs | 0-1 Year Treasury Bond |
| Total return, 1 year | −0.1% | +3.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −17.6 pts | −13.9 pts |
| Expense ratio | 0.04% | 0.15% |
| Holdings | 2599 | 66 |
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.
SHV in plain words
SHV is a bond fund tracking the 0-1 Year Treasury Bond. Over the year to Sep 11, 2026 it returned +3.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year.
Questions people ask
- Which returned more over the last year, MBB or SHV?
- In the year to Sep 13, 2026, with distributions reinvested, MBB returned −0.1% and SHV returned +3.6%, so SHV returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, MBB or SHV?
- MBB charges 0.04% a year and SHV charges 0.15%, 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.
Cite this page. ETFIQ, MBB against SHV, data as of Sep 13, 2026. https://etfiq.com/compare/any/mbb-vs-shv Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources