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IBB
$212.20+1.68%
as of close, Oct 27, 2026
☾ AH $212.20 +1.68%
iShares Biotechnology ETFETF · Themes
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IBB — iShares Biotechnology ETF price, chart and key statistics

Technical analysis2
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Addendum charts0
What would $1,000 invested in IBB be worth today? →
IBB returns: By year · By month · By week · Trailing

Fund facts#

Expense ratio
0.44%
Distribution yield
0.16%
YTD total return
+25.85%
YTD price return
+25.73%
Avg return 3Y
+21.26%
Avg return 5Y
+5.83%
AUM
$9.1B (2026-06-30)
Issuer
BlackRock
52W low
$154.62
52W high
$217.12
Inception
2001-02-05

Performance · price return · as of 2026-10-27#

1D
+1.68%
5D
+0.81%
1M
+1.16%
3M
+12.67%
YTD
+25.73%
1Y
+35.06%
5Y
+34.70%

About IBB#

“The iShares Biotechnology ETF (the Fund ) seeks to track the investment results of an index composed of U.S.-listed equities in the biotechnology sector.”

Tracks: NYSE Biotechnology IndexObjective as stated in the fund’s SEC prospectus filing.Official SEC filings ↗

Holdings#

247 holdings · top 10 = 50% · filed Jun 30, 2026

Top 10 holdings

CompanyWeight
1AMGNAmgen Inc.
8.7%
2GILDGilead Sciences Inc.
7.7%
3VRTXVertex Pharmaceuticals Incorporated
7.6%
4REGNRegeneron Pharmaceuticals Inc.
5.7%
5MRNAModerna Inc.
5.2%
6NTRANatera Inc.
3.9%
7Argenx SE
3.4%
8ILMNIllumina Inc.
2.9%
9BIIBBiogen Inc.
2.6%
10RVMDRevolution Medicines Inc.
2.5%

Sector weights

SectorWeight
Healthcare
85.3%
Not on ChartRow
13.1%
Industrials
1.1%
Technology
0.5%

Estimated portfolio characteristics

P/B
6.7
Dividend yield
0.44%
Earnings growth (TTM)
-232.5%

Estimated by our own bottom-up analysis of the fund’s SEC-filed holdings; recomputed daily from public data.

Annualized returns (CAGR)#

IBB

Compound annual growth rate per holding period, total return (dividends reinvested), from weekly adjusted closes. Each column is anchored at the date under it; horizons the fund’s history can’t span are omitted.

Fund flows#

IBB
IBB
IBB

Net creations minus redemptions per period, from the fund’s SEC Form N-PORT filings (series-level: where a fund shares its portfolio with mutual-fund share classes, flows cover all classes combined). Quarterly filings publish with a ~60-day lag, so recent months appear as filings land. Flow data begins mid-2019 — Form N-PORT did not exist before then, for any fund.

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