Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
XBI vs XOP: how they differ
XBI and XOP hold 0% of their weight in the same names, and XBI returned more over the year.
State Street(R) SPDR(R) S&P(R) Biotech 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, XBI and XOP hold 0% of their money in the same securities at the same weight.
| Only in XBI | Only in XOP |
|---|---|
| Apogee Therapeutics Inc 1.49% | Texas Pacific Land Corp 3.17% |
| Moderna Inc 1.41% | PBF Energy Inc 2.91% |
| Twist Bioscience Corp 1.41% | Delek US Holdings Inc 2.81% |
| Oruka Therapeutics Inc 1.38% | Expand Energy Corp 2.80% |
| Kymera Therapeutics Inc 1.36% | CNX Resources Corp 2.78% |
| Viking Therapeutics Inc 1.31% | EQT Corp 2.75% |
| Praxis Precision Medicines Inc 1.29% | Valero Energy Corp 2.75% |
| Erasca Inc 1.27% | Antero Resources Corp 2.68% |
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 Jun 30, 2026.
| XBI State Street(R) SPDR(R) S&P(R) Biotech 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 | State Street | State Street |
| What it is | SPDR S&P Biotech | SPDR S&P Oil & Gas Exploration & Production |
| Total return, 1 year | +64.0% | +52.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +46.5 pts | +34.9 pts |
| Expense ratio | 0.35% | 0.35% |
| Holdings | 150 | 51 |
XBI in plain words
XBI is an index equity fund tracking the SPDR S&P Biotech. Over the year to Sep 11, 2026 it returned +64.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.35% a year. By its holdings filed for Jun 30, 2026, 8% of the fund by weight is stocks the S&P 500 also holds, across 150 positions, with the top ten at 13.3%. It sat 9.6% below its high of Feb 8, 2021 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. 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, XBI or XOP?
- In the year to Sep 12, 2026, with distributions reinvested, XBI returned +64.0% and XOP returned +52.4%, so XBI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, XBI or XOP?
- XBI charges 0.35% a year and XOP charges 0.35%, so XBI is cheaper. Fees come from each fund's prospectus.
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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, XBI against XOP, data as of Sep 12, 2026. https://etfiq.com/compare/any/XBI-XOP Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources