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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

BNDX vs IBB: how they differ

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

Vanguard Total International Bond Index Fund and iShares Biotechnology ETF.

What they hold in common

By the books each fund has filed, BNDX and IBB 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 BNDXOnly in IBB
French Republic Government Bond OAT 0.18%Vertex Pharmaceuticals, Inc. 8.09%
Bundesschatzanweisungen 0.14%Amgen, Inc. 7.84%
Canadian Government Bond 0.13%Gilead Sciences, Inc. 6.85%
Canadian Government Bond 0.10%Regeneron Pharmaceuticals, Inc. 4.91%
Canadian Government Bond 0.10%Argenx SE 3.76%
Canadian Government Bond 0.09%Alnylam Pharmaceuticals, Inc. 3.12%
Canadian Government Bond 0.08%Natera, Inc. 2.89%
Canadian Government Bond 0.08%Revolution Medicines, Inc. 2.78%

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 Apr 30, 2026 and Jun 30, 2026.

BNDX and IBB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
BNDX
Vanguard Total International Bond Index Fund
IBB
iShares Biotechnology ETF
Where it sitsCore index fundCore index fund
IssuerVanguardiShares
What it isTotal International BondBiotechnology
Total return, 1 year−0.7%+41.5%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−18.2 pts+24.0 pts
Expense ratio0.07%0.44%
Holdings6707248

BNDX in plain words

BNDX is a bond fund tracking the Total International Bond. Over the year to Sep 11, 2026 it returned −0.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year.

IBB in plain words

IBB is an index equity fund tracking the Biotechnology. Over the year to Sep 11, 2026 it returned +41.5% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.44% a year. By its holdings filed for Jun 30, 2026, 36% of the fund by weight is stocks the S&P 500 also holds, across 248 positions, with the top ten at 44.8%. It sat 6.5% below its high of Aug 19, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, BNDX or IBB?
In the year to Sep 12, 2026, with distributions reinvested, BNDX returned −0.7% and IBB returned +41.5%, so IBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, BNDX or IBB?
BNDX charges 0.07% a year and IBB charges 0.44%, so BNDX 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.

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

A comparison is not a recommendation. Standards and sources