DexCom Inc. drawdown: 49.0% below the all-time high
DexCom Inc. is 49.0% below its all-time high, set Nov 17, 2021 (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
- −49.0%
- 51.0% of ATH
- All-time high
- $162.82
- Nov 17, 2021
- Time below the high
- 4.8 yrs
- since Nov 17, 2021
- Worst-ever drawdown
- −94.6%
- Nov 20, 2008
- Longest underwater
- 7.3 yrs
- between all-time highs
- Today's level first reached
- Apr 24, 2020
- 6.4 yrs ago
- Last time this deep
- Nov 14, 2017
- in a previous episode
% of all-time high since 2005#
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.
The deepest drawdowns on record#
Every decline of 15% or more from an all-time high (price basis), deepest first.
| Peak | Trough | Depth | Peak → trough | Recovered by | Underwater |
|---|---|---|---|---|---|
| May 4, 2006 | Nov 20, 2008 | −94.6% | 2.5 yrs | Aug 8, 2013 | 7.3 yrs |
| Nov 17, 2021 | Nov 10, 2025 | −66.3% | 4.0 yrs | not yet | 4.8 yrs+ |
| Sep 17, 2015 | Oct 26, 2017 | −56.4% | 2.1 yrs | Jul 11, 2018 | 2.8 yrs |
| Mar 5, 2014 | May 7, 2014 | −39.6% | 2 mo | Nov 7, 2014 | 8 mo |
| Feb 20, 2020 | Mar 18, 2020 | −36.8% | 27 days | Apr 16, 2020 | 56 days |
| Jun 13, 2005 | Aug 11, 2005 | −35.1% | 59 days | Dec 16, 2005 | 6 mo |
| Aug 5, 2020 | Nov 2, 2020 | −30.9% | 3 mo | Jul 23, 2021 | 12 mo |
| Nov 9, 2018 | Dec 24, 2018 | −27.8% | 45 days | Jan 17, 2019 | 2 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 2005: how far DexCom Inc. stood below its all-time high, and the total return over the following 1, 5 and 10 years.
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 DexCom Inc. from its all-time high?
- DexCom Inc. is currently 49.0% below its all-time high, set Nov 17, 2021 (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 DexCom Inc. drawdown ever?
- The deepest decline on record in our data (since 2005) took DexCom Inc. 94.6% below its prior high, bottoming Nov 20, 2008. The table on this page lists every major episode with its peak, trough and recovery date.
Methodology & related#
Daily data since -1 from DXCM; no free deep history exists for DexCom 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.