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ACM Research Inc. drawdown: 56.7% below the all-time high (price)

ACM Research Inc. is 56.7% below its all-time high, set Jun 30, 2026 (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
−56.7%
43.3% of ATH
All-time high
$126.89
Jun 30, 2026
Time below the high
4 mo
since Jun 30, 2026
Worst-ever drawdown
−87.2%
Oct 24, 2022
Longest underwater
4.9 yrs
between all-time highs
Today's level first reached
Jan 28, 2026
9 mo ago
Last time this deep
May 7, 2025
in a previous 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%
ACMR close · log2.0010.0050.00
20182020202220242026

The deepest drawdowns on record#

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

PeakTroughDepthPeak → troughRecovered byUnderwater
Feb 16, 2021Oct 24, 2022−87.2%1.7 yrsJan 6, 20264.9 yrs
Jan 22, 2020Mar 18, 2020−64.5%56 daysMay 11, 20204 mo
Jun 30, 2026Oct 16, 2026−58.2%4 monot yet4 mo+
Aug 6, 2020Sep 8, 2020−47.5%33 daysFeb 11, 20216 mo
Feb 11, 2026Mar 30, 2026−46.3%47 daysMay 20, 20263 mo
May 15, 2019Oct 31, 2019−41.0%6 moJan 7, 20208 mo
Mar 14, 2018Feb 7, 2019−38.0%11 moMar 19, 201912 mo
Nov 21, 2017Jan 22, 2018−36.0%2 moMar 5, 20183 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 2017: how far ACM Research Inc. 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 ACM Research Inc. from its all-time high?
ACM Research Inc. is currently 56.7% below its all-time high, set Jun 30, 2026 (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 ACM Research Inc. drawdown ever?
The deepest decline on record in our data (since 2017) took ACM Research Inc. 87.2% below its prior high, bottoming Oct 24, 2022. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily data since -1 from ACMR; no free deep history exists for ACM Research Inc. — 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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