ILMN
$273.68+0.62%
as of close, Sep 30, 2026
☾ AH $273.68 +0.62%
Illumina Inc.Stock · Health CareNasdaq Composite 0.05%Russell 1000 0.04%Russell 3000 0.04%US Stock Market 0.03%MSCI ACWI 0.03%MSCI World 0.03%S&P 500
Illumina Inc. monthly returns
Illumina Inc. has averaged 2.32% per month, positive in 58% of months. Month-by-month returns for Illumina Inc. (ILMN) below, through September 30, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+2.3%
309 months
Best month
+73.4%
May 2003
Worst month
-52.9%
Mar 2001
Positive months
58%
of all months
Illumina Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Sep 2026 | +28.1% | |
| Aug 2026 | +4.2% | |
| Jul 2026 | +16.6% | |
| Jun 2026 | +7.9% | |
| May 2026 | +28.6% | |
| Apr 2026 | +2.8% | |
| Mar 2026 | -8.3% | |
| Feb 2026 | -7.1% | |
| Jan 2026 | +10.4% | |
| Dec 2025 | -0.2% | |
| Nov 2025 | +6.4% | |
| Oct 2025 | +30.1% | |
| Sep 2025 | -5.0% | |
| Aug 2025 | -2.7% | |
| Jul 2025 | +7.7% | |
| Jun 2025 | +16.0% | |
| May 2025 | +6.0% | |
| Apr 2025 | -2.2% | |
| Mar 2025 | -10.6% | |
| Feb 2025 | -33.1% | |
| Jan 2025 | -0.7% | |
| Dec 2024 | -7.3% | |
| Nov 2024 | +0.0% | |
| Oct 2024 | +10.5% | |
| Sep 2024 | -0.8% | |
| Aug 2024 | +7.2% | |
| Jul 2024 | +17.5% | |
| Jun 2024 | +2.9% | |
| May 2024 | -15.3% | |
| Apr 2024 | -10.4% | |
| Mar 2024 | -1.8% | |
| Feb 2024 | -2.2% | |
| Jan 2024 | +2.7% | |
| Dec 2023 | +36.6% | |
| Nov 2023 | -6.8% | |
| Oct 2023 | -20.3% | |
| Sep 2023 | -16.9% | |
| Aug 2023 | -14.0% | |
| Jul 2023 | +2.5% | |
| Jun 2023 | -4.7% | |
| May 2023 | -4.3% | |
| Apr 2023 | -11.6% | |
| Mar 2023 | +16.7% | |
| Feb 2023 | -7.0% | |
| Jan 2023 | +5.9% | |
| Dec 2022 | -7.3% | |
| Nov 2022 | -4.7% | |
| Oct 2022 | +19.9% | |
| Sep 2022 | -5.4% | |
| Aug 2022 | -6.9% | |
| Jul 2022 | +17.5% | |
| Jun 2022 | -23.0% | |
| May 2022 | -19.3% | |
| Apr 2022 | -15.1% | |
| Mar 2022 | +7.0% | |
| Feb 2022 | -6.4% | |
| Jan 2022 | -8.3% | |
| Dec 2021 | +4.1% | |
| Nov 2021 | -12.0% | |
| Oct 2021 | +2.3% | |
| Sep 2021 | -11.3% | |
| Aug 2021 | -7.8% | |
| Jul 2021 | +4.8% | |
| Jun 2021 | +16.7% | |
| May 2021 | +3.3% | |
| Apr 2021 | +2.3% | |
| Mar 2021 | -12.6% | |
| Feb 2021 | +3.0% | |
| Jan 2021 | +15.3% | |
| Dec 2020 | +14.9% | |
| Nov 2020 | +10.0% | |
| Oct 2020 | -5.3% | |
| Sep 2020 | -13.5% | |
| Aug 2020 | -6.5% | |
| Jul 2020 | +3.2% | |
| Jun 2020 | +2.0% | |
| May 2020 | +13.8% | |
| Apr 2020 | +16.8% | |
| Mar 2020 | +2.8% | |
| Feb 2020 | -8.4% | |
| Jan 2020 | -12.6% | |
| Dec 2019 | +3.4% | |
| Nov 2019 | +8.5% | |
| Oct 2019 | -2.9% | |
| Sep 2019 | +8.1% | |
| Aug 2019 | -6.0% | |
| Jul 2019 | -18.7% | |
| Jun 2019 | +20.0% | |
| May 2019 | -1.6% | |
| Apr 2019 | +0.4% | |
| Mar 2019 | -0.7% | |
| Feb 2019 | +11.8% | |
| Jan 2019 | -6.7% | |
| Dec 2018 | -11.1% | |
| Nov 2018 | +8.5% | |
| Oct 2018 | -15.2% | |
| Sep 2018 | +3.4% | |
| Aug 2018 | +9.4% | |
| Jul 2018 | +16.1% | |
| Jun 2018 | +2.5% | |
| May 2018 | +13.1% | |
| Apr 2018 | +1.9% | |
| Mar 2018 | +3.7% | |
| Feb 2018 | -2.0% | |
| Jan 2018 | +6.5% | |
| Dec 2017 | -5.0% | |
| Nov 2017 | +12.1% | |
| Oct 2017 | +3.0% | |
| Sep 2017 | -2.6% | |
| Aug 2017 | +17.6% | |
| Jul 2017 | +0.2% | |
| Jun 2017 | -2.2% | |
| May 2017 | -4.1% | |
| Apr 2017 | +8.3% | |
| Mar 2017 | +1.9% | |
| Feb 2017 | +4.6% | |
| Jan 2017 | +25.0% | |
| Dec 2016 | -3.8% | |
| Nov 2016 | -2.2% | |
| Oct 2016 | -25.1% |
Monthly total return (since Oct 2021)#
-30%-20%-10%0%10%20%30%
Oct 2021+2.3%
Nov 2021-12%
Dec 2021+4.1%
Jan 2022-8.3%2022
Feb 2022-6.4%
Mar 2022+7.0%
Apr 2022-15%
May 2022-19%
Jun 2022-23%
Jul 2022+18%
Aug 2022-6.9%
Sep 2022-5.4%
Oct 2022+20%
Nov 2022-4.7%
Dec 2022-7.3%
Jan 2023+5.9%2023
Feb 2023-7.0%
Mar 2023+17%
Apr 2023-12%
May 2023-4.3%
Jun 2023-4.7%
Jul 2023+2.5%
Aug 2023-14%
Sep 2023-17%
Oct 2023-20%
Nov 2023-6.8%
Dec 2023+37%
Jan 2024+2.7%2024
Feb 2024-2.2%
Mar 2024-1.8%
Apr 2024-10%
May 2024-15%
Jun 2024+2.9%
Jul 2024+17%
Aug 2024+7.2%
Sep 2024-0.75%
Oct 2024+11%
Nov 2024+0.01%
Dec 2024-7.3%
Jan 2025-0.67%2025
Feb 2025-33%
Mar 2025-11%
Apr 2025-2.2%
May 2025+6.0%
Jun 2025+16%
Jul 2025+7.7%
Aug 2025-2.7%
Sep 2025-5.0%
Oct 2025+30%
Nov 2025+6.4%
Dec 2025-0.22%
Jan 2026+10%2026
Feb 2026-7.1%
Mar 2026-8.3%
Apr 2026+2.8%
May 2026+29%
Jun 2026+7.9%
Jul 2026+17%
Aug 2026+4.2%
Sep 2026+28%
Methodology#
Monthly returns are total returns (dividends reinvested), computed from ILMN's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.
FAQ#
- What is Illumina Inc.'s average monthly return?
- Illumina Inc. (ILMN) has averaged about 2.32% per month, positive in roughly 58% of months. The best month was May 2003 (+73.4%) and the worst was Mar 2001 (-52.9%).
More on Illumina Inc.
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