Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
XBI vs XLF: how they differ
XBI and XLF 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) Financial Select Sector SPDR(R) ETF.
What they hold in common
By the books each fund has filed, XBI and XLF hold 0% of their money in the same securities at the same weight.
| Holding | XBI | XLF |
|---|---|---|
| SSI US GOV MONEY MARKET CLASS | 0.08% | 0.15% |
| Only in XBI | Only in XLF |
|---|---|
| MODERNA INC 2.87% | JPMORGAN CHASE + CO 11.81% |
| TWIST BIOSCIENCE CORP 1.81% | BERKSHIRE HATHAWAY INC CL B 11.59% |
| HALOZYME THERAPEUTICS INC 1.47% | VISA INC CLASS A SHARES 7.60% |
| NATERA INC 1.46% | MASTERCARD INC A 5.69% |
| KYMERA THERAPEUTICS INC 1.45% | BANK OF AMERICA CORP 5.09% |
| TRAVERE THERAPEUTICS INC 1.40% | GOLDMAN SACHS GROUP INC 3.75% |
| ROIVANT SCIENCES LTD 1.39% | WELLS FARGO + CO 3.41% |
| ORUKA THERAPEUTICS INC 1.38% | MORGAN STANLEY 3.18% |
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.
| XBI State Street(R) SPDR(R) S&P(R) Biotech ETF | XLF State Street(R) Financial Select Sector SPDR(R) ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | State Street | State Street |
| What it is | SPDR S&P Biotech | Financials |
| Total return, 1 year | +64.0% | +7.6% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +46.5 pts | −9.9 pts |
| Expense ratio | 0.35% | 0.08% |
| Already in the S&P 500 | 8.5% | 100.0% |
| Holdings | 154 | 79 |
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 Sep 10, 2026, 8% of the fund by weight is stocks the S&P 500 also holds, across 154 positions, with the top ten at 15.9%. It sat 9.6% below its high of Feb 8, 2021 on Sep 11, 2026.
XLF in plain words
XLF is an index equity fund tracking the Financials. Over the year to Sep 11, 2026 it returned +7.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.08% a year. By its holdings filed for Sep 10, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 79 positions, with the top ten at 57.3%.
Questions people ask
- Which returned more over the last year, XBI or XLF?
- In the year to Sep 13, 2026, with distributions reinvested, XBI returned +64.0% and XLF returned +7.6%, so XBI returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, XBI or XLF?
- XBI charges 0.35% a year and XLF charges 0.08%, so XLF is cheaper. Fees come from each fund's prospectus.
- How much do XBI and XLF overlap with the S&P 500?
- By their latest filed holdings, 8% of XBI and 100% of XLF by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
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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 XLF, data as of Sep 13, 2026. https://etfiq.com/compare/any/xbi-vs-xlf Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources