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Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

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.

Largest positions each one holds and the other does not
Only in XBIOnly 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 and XOP on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
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 sitsCore index fundCore index fund
IssuerState StreetState Street
What it isSPDR S&P BiotechSPDR 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 ratio0.35%0.35%
Holdings15051

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.

XBI against XOP, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

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