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iShares Biotechnology ETFETF · Themes
$202.93+0.14%
as of market close, Sep 11, 2026
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iShares Biotechnology ETF drawdown: 6.5% below the all-time high

IShares Biotechnology ETF is 6.5% below its all-time high, set Aug 19, 2026 (as of market close, Sep 11, 2026). The chart shows every day as a percentage of the highest level reached up to that point: 100% means a fresh record, everything below is a drawdown.

Below all-time high
−6.5%
93.5% of ATH
All-time high
$216.96
Aug 19, 2026
Time below the high
23 days
since Aug 19, 2026
Worst-ever drawdown
−62.8%
Jul 10, 2002
Longest underwater
9.9 yrs
between all-time highs
Today's level first reached
Aug 18, 2026
24 days ago
Last time this deep
Jun 10, 2026
in a previous episode

% of all-time high since 2001#

The classic underwater chart (drawdown curve), drawn as % of the all-time high — 100% is a fresh record, everything below it is time spent underwater. Basis and range are in the URL, so a particular view is a link.

Basis
Range
All-time high = 100%40%60%80%
IBB close · log20.0050.00100200
20052010201520202025

The deepest drawdowns on record#

Every decline of 15% or more from an all-time high (price basis), deepest first.

PeakTroughDepthPeak → troughRecovered byUnderwater
Jun 5, 2001Jul 10, 2002−62.8%13 moApr 28, 20119.9 yrs
Aug 9, 2021Jun 16, 2022−39.9%10 moJan 7, 20264.4 yrs
Jul 20, 2015Jun 27, 2016−39.3%11 moMay 11, 20204.8 yrs
Feb 12, 2001Apr 3, 2001−34.7%50 daysMay 22, 20013 mo
Jul 8, 2011Aug 8, 2011−22.7%31 daysJan 10, 20126 mo
Feb 25, 2014Apr 14, 2014−21.2%48 daysAug 26, 20146 mo
Feb 8, 2021May 13, 2021−15.3%3 moAug 5, 20216 mo

Price basis (no dividends) — the convention crash histories use. With dividends reinvested, recoveries arrive years earlier; switch the basis on the chart above to see it.

Drawdown vs what came next#

One dot per month since 2001: how far iShares Biotechnology ETF stood below its all-time high, and the total return over the following 1, 5 and 10 years.

1950–19992000–today

Read this with survivorship bias in mind: a single asset's history is one surviving sample, so past recoveries here say little about the odds ahead. Monthly windows also overlap heavily (they are not independent samples). Not investment advice.

FAQ#

How far is iShares Biotechnology ETF from its all-time high?
iShares Biotechnology ETF is currently 6.5% below its all-time high, set Aug 19, 2026 (as of market close, Sep 11, 2026). Prices only, the convention headlines use; with dividends reinvested the gap is usually smaller.
What was the biggest iShares Biotechnology ETF drawdown ever?
The deepest decline on record in our data (since 2001) took iShares Biotechnology ETF 62.8% below its prior high, bottoming Jul 10, 2002. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily data since -1 from IBB; no free deep history exists for iShares Biotechnology ETF — for a 150-year drawdown record see the S&P 500 drawdown page. The price basis excludes dividends; the total-return basis reinvests them; the real basis additionally deflates by CPI. See also returns by year. Past performance does not predict future returns; not investment advice.

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