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Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IBB vs IGSB: how they differ

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

iShares Biotechnology ETF and iShares 1-5 Year Investment Grade Corporate Bond ETF.

What they hold in common

By the books each fund has filed, IBB and IGSB 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 IBBOnly in IGSB
VERTEX PHARMACEUTICALS 7.94%BLK CSH FND TREASURY SL AGENCY 0.56%
AMGEN INC 7.85%EAGLE FUNDING LUXCO S. R.L. 144A 0.29%
GILEAD SCIENCES 7.44%SPACE EXPLORATION TECHNOLOGIES COR 144A 0.15%
REGENERON PHARMACEUTICALS 5.92%DEUTSCHE TELEKOM INTERNATIONAL FIN 0.10%
ARGENX SE ADR 3.78%BAYER US FINANCE II LLC 144A 0.09%
MODERNA 3.67%JPMORGAN CHASE & CO MTN 0.09%
NATERA 3.30%GOLDMAN SACHS BANK USA (FXD-FRN) 0.08%
REVOLUTION MEDICINES 2.87%GOLDMAN SACHS GROUP INC/THE MTN 0.08%

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.

IBB and IGSB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
IBB
iShares Biotechnology ETF
IGSB
iShares 1-5 Year Investment Grade Corporate Bond ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isBiotechnology1-5 Year Investment Grade Corporate Bond
Total return, 1 year+41.5%+1.7%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500+24.0 pts−15.8 pts
Expense ratio0.44%0.04%
Holdings2334496

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 Sep 10, 2026, 36% of the fund by weight is stocks the S&P 500 also holds, across 233 positions, with the top ten at 47.5%. It sat 6.5% below its high of Aug 19, 2026 on Sep 11, 2026.

IGSB in plain words

IGSB is a bond fund tracking the 1-5 Year Investment Grade Corporate Bond. Over the year to Sep 11, 2026 it returned +1.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% a year.

Questions people ask

Which returned more over the last year, IBB or IGSB?
In the year to Sep 13, 2026, with distributions reinvested, IBB returned +41.5% and IGSB returned +1.7%, so IBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IBB or IGSB?
IBB charges 0.44% a year and IGSB charges 0.04%, so IGSB is cheaper. Fees come from each fund's prospectus.

Other comparisons

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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.

IBB against IGSB, ETFIQ, data as of Sep 13, 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, IBB against IGSB, data as of Sep 13, 2026. https://etfiq.com/compare/any/ibb-vs-igsb Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources