F5, Inc. (FFIV)
S&P 500 · Tech Top 100 · Information Technology · data since 1999-06-04 · last close 2026-09-09
F5, Inc. (FFIV) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 8.0 | -1.5 | 6.6 | 11.9 | 18.4 | 8.5 | -3.2 | 1.1 | -0.6 | · | · | · |
| 2025 | 18.2 | -1.6 | -8.9 | -0.6 | 7.8 | 3.1 | 6.5 | -0.1 | 3.2 | -21.7 | -5.5 | 6.7 |
| 2024 | 2.6 | 1.9 | 1.3 | -12.8 | 2.2 | 1.9 | 18.2 | -0.2 | 8.4 | 6.2 | 7.0 | 0.5 |
| 2023 | 2.9 | -3.2 | 1.9 | -7.8 | 9.8 | -0.9 | 8.2 | 3.4 | -1.5 | -5.9 | 12.9 | 4.5 |
| 2022 | -15.2 | -3.3 | 4.0 | -19.9 | -2.6 | -6.1 | 9.4 | -6.2 | -7.8 | -1.3 | 8.2 | -7.2 |
| 2021 | 11.4 | -3.0 | 9.8 | -10.5 | -0.7 | 0.7 | 10.6 | -1.4 | -2.4 | 6.2 | 7.8 | 7.5 |
| 2020 | -12.6 | -1.8 | -11.1 | 30.6 | 4.1 | -3.8 | -2.6 | -2.6 | -7.2 | 8.3 | 22.5 | 8.1 |
| 2019 | -0.7 | 4.5 | -6.7 | -0.0 | -15.8 | 10.3 | 0.8 | -12.3 | 9.1 | 2.6 | 1.1 | -4.2 |
| 2018 | 10.2 | 2.8 | -2.6 | 12.8 | 6.1 | -0.4 | -0.6 | 10.3 | 5.5 | -12.1 | -1.9 | -5.8 |
| 2017 | -7.4 | 6.9 | -0.5 | -9.4 | -0.8 | -0.8 | -5.0 | -1.1 | 1.0 | 0.6 | 10.7 | -2.2 |
| 2016 | -3.3 | 2.5 | 10.1 | -1.0 | 5.2 | 3.3 | 8.4 | -0.6 | 1.6 | 10.9 | 1.8 | 2.8 |
| 2015 | -14.4 | 5.8 | -2.7 | 6.2 | 3.0 | -4.3 | 11.5 | -9.5 | -4.6 | -4.8 | -6.5 | -5.9 |
| 2014 | 17.8 | 5.0 | -5.1 | -1.4 | 3.2 | 2.7 | 1.0 | 10.3 | -4.4 | 3.6 | 5.0 | 1.0 |
| 2013 | 8.0 | -10.0 | -5.7 | -14.2 | 8.9 | -17.3 | 27.6 | -5.0 | 2.9 | -5.0 | 0.9 | 10.4 |
| 2012 | 12.8 | 4.4 | 8.0 | -0.8 | -22.7 | -3.8 | -6.2 | 4.4 | 7.3 | -21.1 | 13.4 | 3.7 |
| 2011 | -16.7 | 8.9 | -13.1 | -1.2 | 12.1 | -2.9 | -15.2 | -12.7 | -12.9 | 46.3 | 8.7 | -6.1 |
| 2010 | -6.7 | 12.9 | 10.4 | 11.0 | 2.8 | -2.5 | 28.1 | -0.5 | 18.7 | 13.4 | 12.1 | -1.3 |
| 2009 | -3.0 | -9.8 | 4.8 | 30.2 | 16.5 | 9.0 | 7.3 | -7.1 | 14.9 | 13.3 | 4.8 | 12.6 |
| 2008 | -17.5 | -5.8 | -18.0 | 24.6 | 32.8 | -5.4 | 2.6 | 17.0 | -31.5 | 6.2 | 0.3 | -8.2 |
| 2007 | -3.8 | 1.7 | -8.2 | 15.2 | 5.8 | -0.8 | 7.6 | -19.3 | 6.3 | -3.1 | -26.7 | 8.0 |
| 2006 | 13.0 | 4.9 | 6.9 | -19.2 | -17.1 | 10.2 | -13.3 | 8.1 | 7.3 | 23.2 | 13.0 | -0.8 |
| 2005 | -1.6 | 14.9 | -8.3 | -15.3 | 19.7 | -7.7 | -10.8 | -2.1 | 5.3 | 19.7 | 1.8 | 8.0 |
| 2004 | 35.5 | -2.9 | 2.5 | -24.6 | 16.4 | -10.8 | -1.1 | -6.2 | 24.0 | 31.2 | 7.8 | 13.2 |
| 2003 | 20.7 | 7.8 | -9.6 | 9.1 | 25.7 | -4.0 | 12.8 | 4.6 | -1.9 | 30.0 | 3.2 | -2.8 |
| 2002 | 8.5 | -6.5 | 6.4 | -44.0 | -9.3 | -17.2 | 28.0 | -0.2 | -39.6 | 24.4 | 49.3 | -23.4 |
| 2001 | 79.0 | -59.0 | -23.3 | 40.2 | 49.9 | 56.5 | -16.9 | 8.3 | -41.3 | 62.6 | 48.0 | -3.5 |
| 2000 | -17.5 | -4.3 | -24.7 | -31.1 | -30.9 | 69.2 | -17.2 | 28.4 | -41.4 | -8.8 | -19.8 | -61.8 |
| 1999 | · | · | · | · | · | 175.6 | 21.9 | 35.6 | 0.3 | 104.0 | -18.5 | 0.8 |
| Avg | 4.7 | -1.0 | -2.8 | -0.8 | 5.6 | 9.4 | 4.2 | 1.6 | -2.9 | 12.2 | 6.0 | -1.7 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
FFIV seasonality — average by calendar month
F5, Inc. has monthly history back to 1999. Its strongest month by median is October — positive in 18 of 27 years, median +6.2%, and higher in 5 of the last 9. March is the soft spot, down in 15 of 27 with a median of -2.6%. Across its full record it has closed 54% of months higher, swings ±17.2% in an average month and has fallen 97.6% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +4.7% | -1.0% | -2.8% | -0.8% | +5.6% | +9.4% | +4.2% | +1.6% | -3.0% | +12.2% | +6.0% | -1.7% |
| Win rate | 52%/27 | 52%/27 | 44%/27 | 37%/27 | 70%/27 | 43%/28 | 61%/28 | 39%/28 | 56%/27 | 67%/27 | 78%/27 | 52%/27 |
Win rate = share of positive months / sample size.
FFIV risk & extremes
FFIV 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 F5, Inc.'s best month?+
F5, Inc.'s strongest completed month on record is October 1999, at +104.04%.
What was F5, Inc.'s worst month?+
Its weakest completed month on record is December 2000, at -61.81%.
Is F5, Inc. up this year?+
F5, Inc. is up 58.52% year to date, measured from its last close before 1 January.
What is F5, Inc.'s 1-year return?+
+24.34% 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 F5, Inc.'s biggest drawdown?+
The deepest peak-to-trough fall on record is 97.6%, measured on month-end closes since 1999.
Which calendar month is historically best for F5, Inc.?+
October has the highest average return across every completed October since 1999. An average is not a forecast.
About F5, Inc.
F5, Inc. is an S&P 500 company, an information technology business worth about $23 billion. It sells the picks and shovels of the digital gold rush — with price receipts on this site going back to 1999. And the long game: $100 at its first close here (1999) would be about $1,986 today.
Did you know?
- Its best month on record was October 1999 at +104.04%; its worst, December 2000 at -61.81%.
- It has closed November in the green 21 out of 27 times — past performance, future shrug.
Trivia for entertainment — the numbers come from our price data; the jokes don't.