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as of close, Oct 20, 2026
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Appian Corporation drawdown: 81.1% below the all-time high (price)

Appian Corporation is 81.1% below its all-time high, set Jan 27, 2021 (as of market close, Oct 20, 2026), measured on price alone — dividends are not included, the convention headlines and crash histories use. 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
−81.1%
18.9% of ATH
All-time high
$235.24
Jan 27, 2021
Time below the high
5.7 yrs
since Jan 27, 2021
Worst-ever drawdown
−92.0%
May 13, 2026
Longest underwater
5.7 yrs
between all-time highs
Today's level first reached
Aug 9, 2019
7.2 yrs ago
Last time this deep
never before
no prior −81.1% episode

% of all-time high since 2017: price#

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%20%40%60%80%
APPN close · log20.0050.00100200
20182020202220242026

The deepest drawdowns on record#

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

PeakTroughDepthPeak → troughRecovered byUnderwater
Jan 27, 2021May 13, 2026−92.0%5.3 yrsnot yet5.7 yrs+
Feb 18, 2020Apr 3, 2020−50.5%45 daysSep 29, 20207 mo
Jun 18, 2018Oct 24, 2018−46.6%4 moAug 8, 201914 mo
Aug 26, 2019Dec 30, 2019−38.6%4 moFeb 18, 20206 mo
Jan 5, 2018Mar 28, 2018−37.0%3 moJun 14, 20185 mo
Sep 29, 2017Nov 20, 2017−30.8%52 daysDec 26, 20173 mo
Nov 27, 2020Dec 2, 2020−29.7%5 daysJan 22, 202156 days
Oct 14, 2020Oct 30, 2020−24.4%16 daysNov 6, 202023 days

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 2017: how far Appian 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 Appian Corporation from its all-time high?
Appian Corporation is currently 81.1% below its all-time high, set Jan 27, 2021 (as of market close, Oct 20, 2026). Prices only, the convention headlines use; with dividends reinvested the gap is usually smaller.
What was the biggest Appian Corporation drawdown ever?
The deepest decline on record in our data (since 2017) took Appian Corporation 92.0% below its prior high, bottoming May 13, 2026. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily data since -1 from APPN; no free deep history exists for Appian 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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