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PTCT
$59.24-2.87%
as of close, Oct 16, 2026
☾ AH $59.24 -2.87%
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PTC Therapeutics Inc. drawdown: 33.8% below the all-time high (price)

PTC Therapeutics Inc. is 33.8% below its all-time high, set Jul 9, 2026 (as of market close, Oct 16, 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
−33.8%
66.2% of ATH
All-time high
$89.55
Jul 9, 2026
Time below the high
3 mo
since Jul 9, 2026
Worst-ever drawdown
−94.6%
Nov 3, 2016
Longest underwater
10.7 yrs
between all-time highs
Today's level first reached
Jan 20, 2015
11.7 yrs ago
Last time this deep
Aug 29, 2025
in a previous episode

% of all-time high since 2013: 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%
PTCT close · log5.0010.0020.0050.00
2014201620182020202220242026

The deepest drawdowns on record#

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

PeakTroughDepthPeak → troughRecovered byUnderwater
Mar 17, 2015Nov 3, 2016−94.6%1.6 yrsNov 21, 202510.7 yrs
Feb 27, 2014May 21, 2014−56.8%3 moSep 15, 20147 mo
Sep 23, 2013Nov 18, 2013−39.5%56 daysJan 15, 20144 mo
Jul 9, 2026Oct 16, 2026−33.8%3 monot yet3 mo+
Nov 26, 2025Mar 6, 2026−27.2%3 moJul 7, 20267 mo
Sep 26, 2014Oct 10, 2014−25.4%14 daysDec 2, 20142 mo
Jan 17, 2014Feb 5, 2014−25.3%19 daysFeb 20, 201434 days
Jul 18, 2013Aug 2, 2013−23.6%15 daysSep 4, 201348 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 2013: how far PTC Therapeutics 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 PTC Therapeutics Inc. from its all-time high?
PTC Therapeutics Inc. is currently 33.8% below its all-time high, set Jul 9, 2026 (as of market close, Oct 16, 2026). Prices only, the convention headlines use; with dividends reinvested the gap is usually smaller.
What was the biggest PTC Therapeutics Inc. drawdown ever?
The deepest decline on record in our data (since 2013) took PTC Therapeutics Inc. 94.6% below its prior high, bottoming Nov 3, 2016. The table on this page lists every major episode with its peak, trough and recovery date.

Methodology & related#

Daily data since -1 from PTCT; no free deep history exists for PTC Therapeutics 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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