Which returned more over the last year, IBB or IJR?

In the year to Sep 12, 2026, with distributions reinvested, IBB returned +41.5% and IJR returned +19.9%, so IBB returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IBB or IJR?

IBB charges 0.44% a year and IJR charges 0.06%, so IJR is cheaper. Fees come from each fund's prospectus.

How much do IBB and IJR overlap with the S&P 500?

By their latest filed holdings, 36% of IBB and 0% of IJR by weight is stocks the S&P 500 already holds. Between the two funds, 2% of their books are the same securities at the same weight.

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

ETFIQetfiq.com · independent ETF data

IBB vs IJR: how they differ

IBB and IJR hold 2% of their weight in the same names, and IBB returned more over the year.

iShares Biotechnology ETF and iShares Core S&P Small-Cap ETF.

What they hold in common

By the books each fund has filed, IBB and IJR hold 2% of their money in the same securities at the same weight.

Positions IBB and IJR both hold, largest shared weight first
Holding	IBB	IJR
Krystal Biotech, Inc.	0.75%	0.54%
Protagonist Therapeutics, Inc.	0.58%	0.41%
PTC Therapeutics, Inc.	0.51%	0.38%
Veracyte, Inc.	0.36%	0.26%
ACADIA Pharmaceuticals, Inc.	0.33%	0.18%
Arcus Biosciences, Inc.	0.20%	0.15%
Vericel Corp.	0.17%	0.13%
ADMA Biologics, Inc.	0.15%	0.11%
Sarepta Therapeutics, Inc.	0.14%	0.10%
Fortrea Holdings, Inc.	0.13%	0.09%
Vir Biotechnology, Inc.	0.11%	0.07%
Xencor, Inc.	0.09%	0.07%

Largest positions each one holds and the other does not
Only in IBB	Only in IJR
Vertex Pharmaceuticals, Inc. 8.09%	FORMFACTOR INC 0.69%
Amgen, Inc. 7.84%	VIASAT INC 0.68%
Gilead Sciences, Inc. 6.85%	MOLINA HEALTHCARE INC 0.66%
Regeneron Pharmaceuticals, Inc. 4.91%	ARGAN INC 0.62%
Argenx SE 3.76%	BRIGHTSPRING HEALTH SERVICES INC 0.61%
Alnylam Pharmaceuticals, Inc. 3.12%	ELEMENT SOLUTIONS INC 0.61%
Natera, Inc. 2.89%	MAXLINEAR INC 0.60%
Revolution Medicines, Inc. 2.78%	ESCO TECHNOLOGIES INC 0.50%

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.

IBB and IJR on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IBB iShares Biotechnology ETF	IJR iShares Core S&P Small-Cap ETF
Where it sits	Core index fund	Core index fund
Issuer	iShares	iShares
What it is	Biotechnology	S&P SmallCap 600
Total return, 1 year	+41.5%	+19.9%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	+24.0 pts	+2.4 pts
Expense ratio	0.44%	0.06%
Already in the S&P 500	35.6%	0.0%
Holdings	248	603

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.

IJR in plain words

IJR is an index equity fund tracking the S&P SmallCap 600. Over the year to Sep 11, 2026 it returned +19.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year. By its holdings filed for Jun 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 603 positions, with the top ten at 6.0%. It sat 5.5% below its high of Aug 14, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, IBB or IJR?: In the year to Sep 12, 2026, with distributions reinvested, IBB returned +41.5% and IJR returned +19.9%, so IBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IBB or IJR?: IBB charges 0.44% a year and IJR charges 0.06%, so IJR is cheaper. Fees come from each fund's prospectus.
How much do IBB and IJR overlap with the S&P 500?: By their latest filed holdings, 36% of IBB and 0% of IJR by weight is stocks the S&P 500 already holds. Between the two funds, 2% 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.

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

A comparison is not a recommendation. Standards and sources