Fortinet (FTNT)
S&P 500 · Nasdaq-100 · Tech Top 100 · Information Technology · data since 2009-11-18 · last close 2026-09-09
Fortinet (FTNT) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2.3 | -2.7 | 3.4 | 3.2 | 63.6 | 11.3 | 5.4 | 5.5 | -8.0 | · | · | · |
| 2025 | 6.8 | 7.1 | -10.9 | 7.8 | -1.9 | 3.9 | -5.5 | -21.1 | 6.7 | 2.8 | -6.1 | -2.1 |
| 2024 | 10.2 | 7.2 | -1.2 | -7.5 | -6.1 | 1.6 | -3.7 | 32.2 | 1.1 | 1.4 | 20.8 | -0.6 |
| 2023 | 7.1 | 13.6 | 11.8 | -5.1 | 8.4 | 10.6 | 2.8 | -22.5 | -2.5 | -2.6 | -8.1 | 11.4 |
| 2022 | -17.3 | 15.9 | -0.8 | -15.4 | 1.8 | -3.8 | 5.4 | -18.4 | 0.9 | 16.3 | -7.0 | -8.0 |
| 2021 | -2.5 | 16.6 | 9.2 | 10.7 | 7.0 | 9.0 | 14.3 | 15.8 | -7.3 | 15.2 | -1.3 | 8.2 |
| 2020 | 8.1 | -11.5 | -0.9 | 6.5 | 29.2 | -1.4 | 0.8 | -4.5 | -10.8 | -6.3 | 11.7 | 20.5 |
| 2019 | 8.7 | 13.3 | -3.3 | 11.3 | -22.4 | 6.0 | 4.5 | -1.4 | -3.1 | 6.3 | 28.9 | 1.6 |
| 2018 | 5.4 | 9.6 | 6.2 | 3.3 | 10.5 | 2.0 | 0.8 | 33.1 | 10.2 | -10.9 | -10.2 | -4.6 |
| 2017 | 10.4 | 12.3 | 2.7 | 1.7 | 0.9 | -4.8 | -1.4 | 3.5 | -6.2 | 10.0 | 6.7 | 3.9 |
| 2016 | -9.7 | 0.9 | 7.8 | 6.1 | 5.2 | -7.7 | 9.8 | 4.2 | 2.2 | -13.2 | -6.1 | 0.1 |
| 2015 | -2.5 | 12.4 | 4.0 | 8.0 | 6.2 | 3.2 | 15.5 | -11.7 | 0.8 | -19.1 | 4.8 | -13.5 |
| 2014 | 10.8 | 9.2 | -4.8 | -0.2 | 2.2 | 11.8 | -2.3 | 5.1 | -2.1 | 3.1 | 5.8 | 11.3 |
| 2013 | 12.2 | 2.5 | -2.1 | -24.2 | 7.2 | -9.1 | 21.4 | -6.8 | 2.3 | -0.6 | -15.1 | 11.9 |
| 2012 | 4.6 | 18.6 | 2.2 | -5.5 | -18.6 | 9.3 | 3.4 | 10.4 | -9.0 | -19.7 | 3.1 | 5.2 |
| 2011 | 18.9 | 6.2 | 8.1 | 10.3 | -0.4 | 12.6 | -25.5 | -5.9 | -12.2 | 37.3 | 4.0 | -9.1 |
| 2010 | -1.9 | -0.3 | 2.3 | 1.1 | -8.2 | 0.7 | 9.6 | 13.2 | 22.7 | 20.0 | 6.2 | 1.5 |
| 2009 | · | · | · | · | · | · | · | · | · | · | 2.2 | 3.4 |
| Avg | 4.2 | 7.7 | 2.0 | 0.7 | 5.0 | 3.2 | 3.2 | 1.8 | -0.8 | 2.5 | 2.4 | 2.4 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
FTNT seasonality — average by calendar month
Fortinet has monthly history back to 2009. Its strongest month by median is February — positive in 14 of 17 years, median +9.2%, and higher in 7 of the last 9. September is the soft spot, down in 8 of 16 with a median of -0.6%. Across its full record it has closed 64% of months higher, swings ±11.3% in an average month and has fallen 51.2% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +4.2% | +7.7% | +2.0% | +0.7% | +5.0% | +3.3% | +3.3% | +1.8% | -0.4% | +2.5% | +2.4% | +2.4% |
| Win rate | 71%/17 | 82%/17 | 59%/17 | 65%/17 | 65%/17 | 71%/17 | 71%/17 | 53%/17 | 50%/16 | 56%/16 | 59%/17 | 65%/17 |
Win rate = share of positive months / sample size.
FTNT risk & extremes
FTNT drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
Related stocks
Frequently asked questions
What was Fortinet's best month?+
Fortinet's strongest completed month on record is May 2026, at +63.65%.
What was Fortinet's worst month?+
Its weakest completed month on record is July 2011, at -25.54%.
Is Fortinet up this year?+
Fortinet is up 97.99% year to date, measured from its last close before 1 January.
What is Fortinet's 1-year return?+
+96.92% over the past twelve months, comparing the latest close with the most recent close on or before the same date a year earlier.
What is Fortinet's biggest drawdown?+
The deepest peak-to-trough fall on record is 51.2%, measured on month-end closes since 2009.
Which calendar month is historically best for Fortinet?+
February has the highest average return across every completed February since 2009. An average is not a forecast.
About Fortinet
Fortinet is an S&P 500 company, an information technology business worth about $115 billion. It turns caffeine and code into shareholder value — with price receipts on this site going back to 2009. And the long game: $100 at its first close here (2009) would be about $10,059 today.
Did you know?
- Its best month on record was May 2026 at +63.65%; its worst, July 2011 at -25.54%.
- It has closed February in the green 14 out of 17 times — not a promise, just a suspicious habit.
Trivia for entertainment — the numbers come from our price data; the jokes don't.