Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
MBB vs USO: how they differ
MBB is a bond index fund and USO a commodity fund, and over the year USO returned more, +112.2% against −0.1%.
iShares MBS ETF and United States Oil Fund, LP.
| MBB iShares MBS ETF | USO United States Oil Fund, LP | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | United |
| What it is | Mbs | Oil |
| Total return, 1 year | −0.1% | +112.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −17.6 pts | +94.7 pts |
| Expense ratio | 0.04% | not published |
| Holdings | 11144 | not filed |
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.
USO in plain words
USO is a commodity fund tracking the Oil. Over the year to Sep 11, 2026 it returned +112.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. It sat 57.1% below its high of Apr 8, 2011 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, MBB or USO?
- In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and USO returned +112.2%, so USO returned more. One year is one year; the longer windows are in the table.
Other comparisons
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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.
Cite this page. ETFIQ, MBB against USO, data as of Sep 12, 2026. https://etfiq.com/compare/any/MBB-USO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources