Fortinet Inc. drawdown: 9.7% below the all-time high
Fortinet Inc. is 9.7% below its all-time high, set Aug 27, 2026 (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
- −9.7%
- 90.3% of ATH
- All-time high
- $172.78
- Aug 27, 2026
- Time below the high
- 15 days
- since Aug 27, 2026
- Worst-ever drawdown
- −51.2%
- Feb 11, 2016
- Longest underwater
- 2.7 yrs
- between all-time highs
- Today's level first reached
- Jul 1, 2026
- 2 mo ago
- Last time this deep
- Aug 24, 2026
- in a previous episode
% of all-time high since 2009#
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 |
|---|---|---|---|---|---|
| Aug 5, 2015 | Feb 11, 2016 | −51.2% | 6 mo | Feb 15, 2018 | 2.5 yrs |
| Jul 6, 2011 | Sep 23, 2011 | −42.3% | 3 mo | Apr 2, 2012 | 9 mo |
| Apr 5, 2012 | Jun 24, 2013 | −41.9% | 15 mo | Dec 17, 2014 | 2.7 yrs |
| Jul 17, 2023 | Nov 7, 2023 | −38.3% | 4 mo | Oct 9, 2024 | 15 mo |
| Feb 6, 2020 | Mar 16, 2020 | −37.6% | 39 days | May 7, 2020 | 3 mo |
| Dec 27, 2021 | Nov 3, 2022 | −37.5% | 10 mo | Jun 15, 2023 | 18 mo |
| Feb 19, 2025 | Aug 8, 2025 | −35.1% | 6 mo | May 11, 2026 | 15 mo |
| Oct 1, 2018 | Dec 24, 2018 | −29.0% | 3 mo | Apr 12, 2019 | 6 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 2009: how far Fortinet 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 Fortinet Inc. from its all-time high?
- Fortinet Inc. is currently 9.7% below its all-time high, set Aug 27, 2026 (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 Fortinet Inc. drawdown ever?
- The deepest decline on record in our data (since 2009) took Fortinet Inc. 51.2% below its prior high, bottoming Feb 11, 2016. The table on this page lists every major episode with its peak, trough and recovery date.
Methodology & related#
Daily data since -1 from FTNT; no free deep history exists for Fortinet 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.