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GKOS
$164.19+3.56%
as of close, Sep 30, 2026
☾ AH $164.19 +3.56%
Glaukos CorporationStock · Health CareRussell 2000 0.2%US Stock Market 0.01%Russell 3000 0.01%
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Glaukos Corporation drawdown: 13.4% below the all-time high

Glaukos Corporation is 13.4% below its all-time high, set Aug 19, 2026 (as of market close, Sep 30, 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
−13.4%
86.6% of ATH
All-time high
$189.55
Aug 19, 2026
Time below the high
42 days
since Aug 19, 2026
Worst-ever drawdown
−69.6%
Mar 20, 2020
Longest underwater
2.9 yrs
between all-time highs
Today's level first reached
Jul 30, 2026
2 mo ago
Last time this deep
Jul 1, 2026
in a previous episode

% of all-time high since 2015#

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%
GKOS close · log20.0050.00100
201620182020202220242026

The deepest drawdowns on record#

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

PeakTroughDepthPeak → troughRecovered byUnderwater
Aug 1, 2019Mar 20, 2020−69.6%8 moJan 13, 202117 mo
Apr 28, 2021May 11, 2022−64.3%12 moApr 8, 20242.9 yrs
Aug 18, 2015Feb 8, 2016−55.0%6 moJul 21, 201611 mo
Jan 23, 2025Oct 24, 2025−53.7%9 moJul 29, 20261.5 yrs
Apr 3, 2017Nov 22, 2017−53.1%8 moAug 29, 201817 mo
Aug 31, 2018Jan 3, 2019−25.8%4 moFeb 12, 20195 mo
Sep 27, 2016Dec 1, 2016−22.0%2 moJan 12, 20174 mo
Mar 21, 2019Jun 3, 2019−21.0%2 moJul 31, 20194 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 2015: how far Glaukos Corporation 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 Glaukos Corporation from its all-time high?
Glaukos Corporation is currently 13.4% below its all-time high, set Aug 19, 2026 (as of market close, Sep 30, 2026). Prices only, the convention headlines use; with dividends reinvested the gap is usually smaller.
What was the biggest Glaukos Corporation drawdown ever?
The deepest decline on record in our data (since 2015) took Glaukos Corporation 69.6% below its prior high, bottoming Mar 20, 2020. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily data since -1 from GKOS; no free deep history exists for Glaukos Corporation — 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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