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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

BITO vs XBI: how they differ

BITO and XBI hold 0% of their weight in the same names, and XBI returned more over the year.

ProShares Bitcoin ETF and State Street(R) SPDR(R) S&P(R) Biotech ETF.

What they hold in common

By the books each fund has filed, BITO and XBI 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 BITOOnly in XBI
ProShares GENIUS Money Market ETF 100.00%Apogee Therapeutics Inc 1.49%
Moderna Inc 1.41%
Twist Bioscience Corp 1.41%
Oruka Therapeutics Inc 1.38%
Kymera Therapeutics Inc 1.36%
Viking Therapeutics Inc 1.31%
Praxis Precision Medicines Inc 1.29%
Erasca Inc 1.27%

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 and May 31, 2026.

BITO and XBI on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
BITO
ProShares Bitcoin ETF
XBI
State Street(R) SPDR(R) S&P(R) Biotech ETF
Where it sitsCore index fundCore index fund
IssuerProSharesState Street
What it isBitcoinSPDR S&P Biotech
Total return, 1 year−34.8%+64.0%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−52.3 pts+46.5 pts
Expense ratio0.95%0.35%
Holdings1150

BITO in plain words

BITO is a digital asset fund tracking the Bitcoin. Over the year to Sep 11, 2026 it returned −34.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.95% a year. It sat 40.3% below its high of Oct 6, 2025 on Sep 11, 2026.

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.

Questions people ask

Which returned more over the last year, BITO or XBI?
In the year to Sep 12, 2026, with distributions reinvested, BITO returned −34.8% and XBI returned +64.0%, so XBI returned more. One year is one year; the longer windows are in the table.
Which is cheaper, BITO or XBI?
BITO charges 0.95% a year and XBI 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.

BITO against XBI, 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, BITO against XBI, data as of Sep 12, 2026. https://etfiq.com/compare/any/BITO-XBI Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources