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IBB
US Health Care
Passive

iShares Biotechnology ETF

This ETF provides exposure to US Biotechnology Equities

IBB performance and flow charts

Last update 4/29/2026 at 3:00 PM
Live
Closed
Last price
$165.40
-$2.41 (-1.44%) today

Performance

0246810%Mar 27Apr 6Apr 13Apr 20Apr 27

Flows

-100 M-50 M0 M50 M100 M
1 day price range
$164.81
$166.90
52 week price range
$116.53
$177.61
1W perf
-3.89%
YTD perf
+0.16%
YTD flows
-$327M
AuM
$8.03B
E/R
0.44%
TTM yield
0.23%
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Historic performance and flows

Data as of April 27, 2026
1M3MYTD1Y3Y5Y
Perf.+5.31%-4.45%+0.16%+35.85%+31.87%+8.56%
Flows-$138M-$331M-$327M+$772M-$1.59B-$2.08B
Data as of April 27, 2026
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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Characteristics

The iShares Biotechnology ETF is built to track the ICE Biotechnology Index (TR) - USD. This ETF provides physical exposure - by owning its shares you earn the return of the securities composing the index (as the ETF holds them directly). This share class generates a stream of income by distributing dividends.

Management strategyPassive
StrategyLong Only
ProvideriShares
N° of holdings249
Replication methodDirect (Physical)
Asset classEquity
Dividend policyDistributing
Trailing 12m distribution yield
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Inception dateFebruary 5, 2001
ESGNo
TrackinsightTrackinsight

More data and info about IBB on Trackinsight

Exposure

Data as of March 31, 2026

Diversification

55.88%

Total weight of top 15 holdings out of 249

Top 15 Holdings

GILEAD SCIENCES
7.75%
AMGEN-T
7.51%
VERTEX PHARMACEUTICALS
7.44%
REGENERON PHARMACEUTICALS
7.21%
ALNYLAM PHARMACEUTICALS
3.99%
INSMED
3.2%
US04016X1019
3.07%
BIOGEN INC
2.46%
NATERA
2.41%
UTD THERAPEUT
2.3%
US07725L1026
1.93%
INCYTE
1.7%
MODERNA INC
1.68%
ILLUMINA
1.68%
REVOLUTION MEDICINES INC
1.54%

Sectors

Health Care
85.68%
Other
14.32%

Countries

USA
95.97%
Other
4.03%
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Trading data

Last sale
4/29/2026 at 3:00 PM
$165.40
Previous close
$167.81
Consolidated volume
04/28/2026
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Average volume
30 days
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Average discount or premium
30 days
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Average Bid/Ask spread
30 days
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Volatility and drawdown

3M1Y3Y5Y
Volatility+22.34%+21.20%+19.78%+22.09%
Max drawdown
-9.27%-9.61%-24.82%-39.75%
Max drawdown duration
90d95d377d1611d
Time to recover
N/AN/A177d1301d

Replication quality

Data as of March 31, 2026
1-year trailing difference

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Tracking error
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Tracking difference
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1 year cumulative return difference
Best
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Worst
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daily return difference
Average
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Worst
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Frequently asked questions about IBB

What type of ETF is IBB?

IBB is a Passive ETF that provides exposure to Equity assets. It is managed by iShares.

What index does IBB track?

IBB tracks the ICE Biotechnology Index (TR) - USD, aiming to replicate its performance through full replication.

What does IBB invest in?

This ETF provides exposure to US Biotechnology Equities. It is part of the segment: US Health Care.

What is the expense ratio of IBB?

The total expense ratio (TER) of IBB is 0.44%, representing the annual fee charged by the fund manager.

When was IBB launched?

IBB was launched on February 5, 2001, marking its entry into the ETF market.

Who is the issuer of IBB?

IBB is issued by iShares.

What is the AUM of IBB?

As of April 27, 2026, IBB manages $8.03 B, reflecting the total assets held in the fund.

How has IBB performed recently?

As of April 27, 2026, IBB delivered a return of 5.31% over the past month (1M performance), -4.45% over the past three months (3M), and 0.16% year-to-date (YTD).

What are the recent fund flows for IBB?

As of April 27, 2026, IBB has seen net flows of -$138M in the past month (1M flow) and -$327M year-to-date (YTD).

Does IBB pay dividends?

As of April 27, 2026, IBB has a trailing 12-month distribution yield of 0.23%.

How many holdings are in IBB

As of March 31, 2026, IBB holds 249 securities in its portfolio. This level of diversification can influence the fund’s risk profile and exposure to individual assets.

How diversified is IBB?

As of March 31, 2026, IBB holds 249 securities, with 55.88% of its assets concentrated in its top 15 holdings.

What are the top holdings of IBB?

As of March 31, 2026, IBB holds a portfolio of 249 underlyings, with its largest positions including GILEAD SCIENCES, AMGEN-T and VERTEX PHARMACEUTICALS. These top holdings play a significant role in shaping the fund’s performance and exposure.

What countries or regions does IBB invest in?

As of March 31, 2026, IBB has its largest geographic exposures in USA.

What sectors or themes does IBB focus on?

As of March 31, 2026, IBB is primarily exposed to Health Care.

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