ALKS
$41.22+2.79%
Alkermes plcStock · HealthcareRussell 2000 0.3%Nasdaq Composite 0.02%US Stock Market 0.01%Russell 3000 0.01%
Alkermes plc monthly returns
Alkermes plc has averaged 2.08% per month, positive in 51% of months. Month-by-month returns for Alkermes plc (ALKS) below, through October 16, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+2.1%
418 months
Best month
+189.4%
Feb 2000
Worst month
-71.5%
Jul 2002
Positive months
51%
of all months
Alkermes plc monthly returns#
| Month | Path | Total return |
|---|---|---|
| Oct 2026 | +1.7% | |
| Sep 2026 | -13.8% | |
| Aug 2026 | -4.1% | |
| Jul 2026 | -6.5% | |
| Jun 2026 | +24.2% | |
| May 2026 | +25.2% | |
| Apr 2026 | -4.7% | |
| Mar 2026 | +17.5% | |
| Feb 2026 | -11.2% | |
| Jan 2026 | +21.1% | |
| Dec 2025 | -5.4% | |
| Nov 2025 | -3.6% | |
| Oct 2025 | +2.3% | |
| Sep 2025 | +3.6% | |
| Aug 2025 | +9.4% | |
| Jul 2025 | -7.4% | |
| Jun 2025 | -6.5% | |
| May 2025 | +6.4% | |
| Apr 2025 | -12.9% | |
| Mar 2025 | -3.8% | |
| Feb 2025 | +8.9% | |
| Jan 2025 | +9.6% | |
| Dec 2024 | -0.9% | |
| Nov 2024 | +12.9% | |
| Oct 2024 | -8.2% | |
| Sep 2024 | -1.6% | |
| Aug 2024 | +4.1% | |
| Jul 2024 | +13.4% | |
| Jun 2024 | +3.0% | |
| May 2024 | -4.6% | |
| Apr 2024 | -9.3% | |
| Mar 2024 | -8.8% | |
| Feb 2024 | +9.8% | |
| Jan 2024 | -2.5% | |
| Dec 2023 | +14.9% | |
| Nov 2023 | -0.2% | |
| Oct 2023 | -13.6% | |
| Sep 2023 | -4.0% | |
| Aug 2023 | -0.3% | |
| Jul 2023 | -6.5% | |
| Jun 2023 | +8.2% | |
| May 2023 | +1.3% | |
| Apr 2023 | +1.3% | |
| Mar 2023 | +5.4% | |
| Feb 2023 | -6.6% | |
| Jan 2023 | +9.6% | |
| Dec 2022 | +5.4% | |
| Nov 2022 | +9.2% | |
| Oct 2022 | +1.7% | |
| Sep 2022 | -5.7% | |
| Aug 2022 | -7.5% | |
| Jul 2022 | -14.1% | |
| Jun 2022 | -0.2% | |
| May 2022 | +3.5% | |
| Apr 2022 | +9.7% | |
| Mar 2022 | +5.8% | |
| Feb 2022 | -2.5% | |
| Jan 2022 | +9.6% | |
| Dec 2021 | +6.1% | |
| Nov 2021 | -27.6% | |
| Oct 2021 | -1.8% | |
| Sep 2021 | -1.3% | |
| Aug 2021 | +20.8% | |
| Jul 2021 | +5.5% | |
| Jun 2021 | +8.2% | |
| May 2021 | +3.0% | |
| Apr 2021 | +17.8% | |
| Mar 2021 | -1.9% | |
| Feb 2021 | -9.3% | |
| Jan 2021 | +5.2% | |
| Dec 2020 | +9.3% | |
| Nov 2020 | +12.4% | |
| Oct 2020 | -1.9% | |
| Sep 2020 | +0.2% | |
| Aug 2020 | -8.2% | |
| Jul 2020 | -7.2% | |
| Jun 2020 | +18.6% | |
| May 2020 | +19.3% | |
| Apr 2020 | -4.9% | |
| Mar 2020 | -30.8% | |
| Feb 2020 | +19.7% | |
| Jan 2020 | -14.7% | |
| Dec 2019 | -2.9% | |
| Nov 2019 | +7.6% | |
| Oct 2019 | +0.1% | |
| Sep 2019 | -7.0% | |
| Aug 2019 | -9.4% | |
| Jul 2019 | +2.8% | |
| Jun 2019 | +4.6% | |
| May 2019 | -29.0% | |
| Apr 2019 | -16.9% | |
| Mar 2019 | +9.7% | |
| Feb 2019 | +1.2% | |
| Jan 2019 | +11.4% | |
| Dec 2018 | -19.0% | |
| Nov 2018 | -10.8% | |
| Oct 2018 | -3.8% | |
| Sep 2018 | -5.4% | |
| Aug 2018 | +2.3% | |
| Jul 2018 | +6.5% | |
| Jun 2018 | -12.8% | |
| May 2018 | +6.6% | |
| Apr 2018 | -23.6% | |
| Mar 2018 | +1.5% | |
| Feb 2018 | -0.2% | |
| Jan 2018 | +4.5% | |
| Dec 2017 | +4.7% | |
| Nov 2017 | +7.2% | |
| Oct 2017 | -4.1% | |
| Sep 2017 | +0.1% | |
| Aug 2017 | -6.7% | |
| Jul 2017 | -6.1% | |
| Jun 2017 | +0.4% | |
| May 2017 | -0.8% | |
| Apr 2017 | -0.4% | |
| Mar 2017 | +3.5% | |
| Feb 2017 | +4.4% | |
| Jan 2017 | -2.6% | |
| Dec 2016 | -2.2% | |
| Nov 2016 | +12.7% |
Monthly total return (since Nov 2021)#
-20%-10%0%10%20%
Nov 2021-28%
Dec 2021+6.1%
Jan 2022+9.6%2022
Feb 2022-2.5%
Mar 2022+5.8%
Apr 2022+9.7%
May 2022+3.5%
Jun 2022-0.2%
Jul 2022-14%
Aug 2022-7.5%
Sep 2022-5.7%
Oct 2022+1.7%
Nov 2022+9.2%
Dec 2022+5.4%
Jan 2023+9.6%2023
Feb 2023-6.6%
Mar 2023+5.4%
Apr 2023+1.3%
May 2023+1.3%
Jun 2023+8.2%
Jul 2023-6.5%
Aug 2023-0.31%
Sep 2023-4.0%
Oct 2023-14%
Nov 2023-0.21%
Dec 2023+15%
Jan 2024-2.5%2024
Feb 2024+9.8%
Mar 2024-8.8%
Apr 2024-9.3%
May 2024-4.6%
Jun 2024+3.0%
Jul 2024+13%
Aug 2024+4.1%
Sep 2024-1.6%
Oct 2024-8.2%
Nov 2024+13%
Dec 2024-0.9%
Jan 2025+9.6%2025
Feb 2025+8.9%
Mar 2025-3.8%
Apr 2025-13%
May 2025+6.4%
Jun 2025-6.5%
Jul 2025-7.4%
Aug 2025+9.4%
Sep 2025+3.6%
Oct 2025+2.3%
Nov 2025-3.6%
Dec 2025-5.4%
Jan 2026+21%2026
Feb 2026-11%
Mar 2026+17%
Apr 2026-4.7%
May 2026+25%
Jun 2026+24%
Jul 2026-6.5%
Aug 2026-4.1%
Sep 2026-14%
Oct 2026+1.7%
Alkermes plc returns by calendar month#
Every month of every year since 1992, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.
October 2026 so far: +1.73% — 16th of 35 Octobers since 1992 at the last close; the average October returned +2.7%.
| Month | −190%0+190% | Average | Median | Up | Best | Worst |
|---|---|---|---|---|---|---|
| Jan | +9.1% | +9.6% | 77% | +40.3% 1999 | -59.7% 2016 | |
| Feb | +5.0% | -0.2% | 43% | +189.4% 2000 | -12.1% 2009 | |
| Mar | -4.0% | -3.0% | 43% | +20.3% 2009 | -51.8% 2000 | |
| Apr | -2.9% | -2.6% | 43% | +39.7% 2001 | -42.4% 2000 | |
| May | +5.7% | +2.1% | 57% | +50.0% 1997 | -29.0% 2019 | |
| Jun | +1.0% | -0.2% | 49% | +33.3% 2009 | -21.3% 1996 | |
| Jul | +2.1% | +1.0% | 51% | +122.6% 1995 | -71.5% 2002 | |
| Aug | +2.4% | -1.2% | 46% | +80.0% 2002 | -44.6% 1998 | |
| Sep | -0.5% | -1.5% | 40% | +33.1% 1998 | -23.5% 2001 | |
| Oct | +2.7% | +0.1% | 50% | +33.9% 1998 | -25.7% 2008 | |
| Nov | -0.1% | +0.1% | 50% | +20.4% 1999 | -27.6% 2021 | |
| Dec | +4.3% | +4.9% | 68% | +64.6% 1996 | -34.6% 1994 |
Methodology#
Monthly returns are total returns (dividends reinvested), computed from ALKS'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 Alkermes plc's average monthly return?
- Alkermes plc (ALKS) has averaged about 2.08% per month, positive in roughly 51% of months. The best month was Feb 2000 (+189.4%) and the worst was Jul 2002 (-71.5%).
More on Alkermes plc
By month for: S&P 500 · S&P 500 Equal Weight · US Stock Market · Nasdaq-100