Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
MBB vs XOP: how they differ
MBB and XOP hold 0% of their weight in the same names, and XOP returned more over the year.
iShares MBS ETF and State Street(R) SPDR(R) S&P(R) Oil & Gas Exploration & Production ETF.
What they hold in common
By the books each fund has filed, MBB and XOP hold 0% of their money in the same securities at the same weight.
| Only in MBB | Only in XOP |
|---|---|
| BLACKROCK CASH CL INST SL AGENCY 7.26% | PBF ENERGY INC CLASS A 3.89% |
| GNMA2 SF 30YR 0.09% | HF SINCLAIR CORP 3.27% |
| GNMA II 30YR SF - JUMBO-CONFORMING 0.08% | DELEK US HOLDINGS INC 3.27% |
| GNMA2 SINGLE FAMILY 30YR 0.04% | VALERO ENERGY CORP 3.21% |
| GNMA II 30YR 0.03% | MARATHON PETROLEUM CORP 3.20% |
| GNMA2 30YR TBA(REG C) 0.03% | PAR PACIFIC HOLDINGS INC 3.12% |
| UMBS 15YR TBA(REG B) 0.03% | PHILLIPS 66 3.06% |
| FNMA 30YR UMBS MEGA REMIC SUPER 0.02% | CALUMET INC 2.77% |
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 | XOP State Street(R) SPDR(R) S&P(R) Oil & Gas Exploration & Production ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | Mbs | SPDR S&P Oil & Gas Exploration & Production |
| Total return, 1 year | −0.1% | +52.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −17.6 pts | +34.9 pts |
| Expense ratio | 0.04% | 0.35% |
| Holdings | 2599 | 54 |
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.
XOP in plain words
XOP is a commodity fund tracking the SPDR S&P Oil & Gas Exploration & Production. Over the year to Sep 11, 2026 it returned +52.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.35% a year. It sat 26.8% below its high of Jun 23, 2014 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, MBB or XOP?
- In the year to Sep 13, 2026, with distributions reinvested, MBB returned −0.1% and XOP returned +52.4%, so XOP returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, MBB or XOP?
- MBB charges 0.04% a year and XOP charges 0.35%, so MBB is cheaper. Fees come from each fund's prospectus.
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 XOP, data as of Sep 13, 2026. https://etfiq.com/compare/any/mbb-vs-xop Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources