Data as of Oct 28, 2026.
MBB vs XOP: Differences, Returns & Fees
Over the year to Oct 28, 2026, MBB returned −0.8% to XOP's +62.5%; 0% of their weight is in the same names.
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askIQ about MBB and XOPNet assets: $35.5bn on Oct 28, 2026 for iShares MBS ETF, and $4.6bn on Oct 27, 2026 for State Street SPDR S&P Oil & Gas Exploration & Production ETF.
Pair scorecard
MBB costs 0.31 points a year less; their one-year returns differ by 63.3 points; MBB is 7.6 times larger.
| Measure | MBB | XOP |
|---|---|---|
| Return | ||
| Total return, 1 year | −0.8% | +62.5% |
| Drawdown | ||
| Below its high | 24.8%, high on Jun 23, 2014 | |
| Benchmark | ||
| What it tracks | Bloomberg U.S. MBS Index | S&P Oil & Gas Exploration & Production Select Industry Index |
| Cost and size | ||
| Expense ratio | 0.04% | 0.35% |
| Net assets, as of Oct 26, 2026 | $35.6bn | $4.7bn |
| Holdings | ||
| Holdings in common | 0% | |
Holdings in common uses holdings dated Oct 27, 2026. Method
What they share
By the books each fund has filed, MBB and XOP hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
MBB and XOP on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
MBB
MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.
XOP
XOP tracks the S&P Oil & Gas Exploration & Production. Over the year to Oct 28, 2026 it returned +62.5% with distributions reinvested. The prospectus expense ratio is 0.35% a year. It sat 24.8% below its high of Jun 23, 2014 on Oct 28, 2026.
Questions people ask
- Which returned more over the last year, MBB or XOP?
- In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and XOP +62.5%.
- Which is cheaper, MBB or XOP?
- MBB is cheaper, by 0.31 percentage points a year. That is about $31 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, MBB against XOP, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-xop
ETFIQ. (Oct 28, 2026). MBB against XOP. Retrieved from https://etfiq.com/compare/any/mbb-vs-xop
[MBB against XOP (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/mbb-vs-xop)
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