AMG
$383.76+0.19%
as of close, Oct 16, 2026
☾ AH $383.76 +0.19%
Affiliated Managers Group Inc.Stock · FinancialsRussell 1000 0.01%Russell 3000 0.01%US Stock Market 0.01%
Affiliated Managers Group Inc. monthly returns
Affiliated Managers Group Inc. has averaged 1.48% per month, positive in 58% of months. Month-by-month returns for Affiliated Managers Group Inc. (AMG) below, through October 16, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+1.5%
346 months
Best month
+49.7%
Dec 2008
Worst month
-45.7%
Aug 1998
Positive months
58%
of all months
Affiliated Managers Group Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Oct 2026 | +5.0% | |
| Sep 2026 | -0.7% | |
| Aug 2026 | +0.4% | |
| Jul 2026 | +8.4% | |
| Jun 2026 | +11.7% | |
| May 2026 | +2.8% | |
| Apr 2026 | +6.5% | |
| Mar 2026 | -9.6% | |
| Feb 2026 | -2.2% | |
| Jan 2026 | +8.6% | |
| Dec 2025 | +7.2% | |
| Nov 2025 | +13.0% | |
| Oct 2025 | -0.2% | |
| Sep 2025 | +6.1% | |
| Aug 2025 | +7.1% | |
| Jul 2025 | +6.7% | |
| Jun 2025 | +11.8% | |
| May 2025 | +6.3% | |
| Apr 2025 | -1.4% | |
| Mar 2025 | -1.7% | |
| Feb 2025 | -9.1% | |
| Jan 2025 | +1.6% | |
| Dec 2024 | -1.4% | |
| Nov 2024 | -3.3% | |
| Oct 2024 | +9.1% | |
| Sep 2024 | +2.3% | |
| Aug 2024 | -6.3% | |
| Jul 2024 | +18.8% | |
| Jun 2024 | -3.9% | |
| May 2024 | +4.2% | |
| Apr 2024 | -6.8% | |
| Mar 2024 | +7.1% | |
| Feb 2024 | +5.0% | |
| Jan 2024 | -1.7% | |
| Dec 2023 | +11.7% | |
| Nov 2023 | +10.4% | |
| Oct 2023 | -5.8% | |
| Sep 2023 | -2.7% | |
| Aug 2023 | -3.3% | |
| Jul 2023 | -7.5% | |
| Jun 2023 | +7.8% | |
| May 2023 | -3.7% | |
| Apr 2023 | +1.4% | |
| Mar 2023 | -10.7% | |
| Feb 2023 | -7.7% | |
| Jan 2023 | +9.0% | |
| Dec 2022 | -1.2% | |
| Nov 2022 | +29.2% | |
| Oct 2022 | +11.0% | |
| Sep 2022 | -12.2% | |
| Aug 2022 | +0.8% | |
| Jul 2022 | +8.4% | |
| Jun 2022 | -12.7% | |
| May 2022 | +6.4% | |
| Apr 2022 | -10.9% | |
| Mar 2022 | +1.9% | |
| Feb 2022 | -5.4% | |
| Jan 2022 | -11.1% | |
| Dec 2021 | -3.3% | |
| Nov 2021 | +1.3% | |
| Oct 2021 | +11.1% | |
| Sep 2021 | -11.2% | |
| Aug 2021 | +7.4% | |
| Jul 2021 | +2.7% | |
| Jun 2021 | -6.0% | |
| May 2021 | +1.8% | |
| Apr 2021 | +8.1% | |
| Mar 2021 | +6.5% | |
| Feb 2021 | +27.0% | |
| Jan 2021 | +8.3% | |
| Dec 2020 | +16.7% | |
| Nov 2020 | +15.6% | |
| Oct 2020 | +10.2% | |
| Sep 2020 | -0.4% | |
| Aug 2020 | -0.2% | |
| Jul 2020 | -7.7% | |
| Jun 2020 | +11.9% | |
| May 2020 | -4.8% | |
| Apr 2020 | +18.3% | |
| Mar 2020 | -21.4% | |
| Feb 2020 | -5.4% | |
| Jan 2020 | -5.8% | |
| Dec 2019 | -0.7% | |
| Nov 2019 | +7.3% | |
| Oct 2019 | -4.2% | |
| Sep 2019 | +8.8% | |
| Aug 2019 | -10.3% | |
| Jul 2019 | -6.9% | |
| Jun 2019 | +9.9% | |
| May 2019 | -24.2% | |
| Apr 2019 | +3.6% | |
| Mar 2019 | -2.3% | |
| Feb 2019 | +4.8% | |
| Jan 2019 | +7.7% | |
| Dec 2018 | -12.3% | |
| Nov 2018 | -2.0% | |
| Oct 2018 | -16.9% | |
| Sep 2018 | -6.4% | |
| Aug 2018 | -8.5% | |
| Jul 2018 | +7.6% | |
| Jun 2018 | -6.6% | |
| May 2018 | -3.2% | |
| Apr 2018 | -13.0% | |
| Mar 2018 | +0.1% | |
| Feb 2018 | -5.0% | |
| Jan 2018 | -2.7% | |
| Dec 2017 | +3.3% | |
| Nov 2017 | +6.6% | |
| Oct 2017 | -1.8% | |
| Sep 2017 | +7.4% | |
| Aug 2017 | -4.8% | |
| Jul 2017 | +12.0% | |
| Jun 2017 | +7.8% | |
| May 2017 | -7.0% | |
| Apr 2017 | +1.0% | |
| Mar 2017 | -2.4% | |
| Feb 2017 | +10.4% | |
| Jan 2017 | +4.9% | |
| Dec 2016 | -1.9% | |
| Nov 2016 | +11.6% |
Monthly total return (since Nov 2021)#
-20%-10%0%10%20%
Nov 2021+1.3%
Dec 2021-3.3%
Jan 2022-11%2022
Feb 2022-5.4%
Mar 2022+1.9%
Apr 2022-11%
May 2022+6.4%
Jun 2022-13%
Jul 2022+8.4%
Aug 2022+0.78%
Sep 2022-12%
Oct 2022+11%
Nov 2022+29%
Dec 2022-1.2%
Jan 2023+9.0%2023
Feb 2023-7.7%
Mar 2023-11%
Apr 2023+1.4%
May 2023-3.7%
Jun 2023+7.8%
Jul 2023-7.5%
Aug 2023-3.3%
Sep 2023-2.7%
Oct 2023-5.8%
Nov 2023+10%
Dec 2023+12%
Jan 2024-1.7%2024
Feb 2024+5.0%
Mar 2024+7.1%
Apr 2024-6.8%
May 2024+4.2%
Jun 2024-3.9%
Jul 2024+19%
Aug 2024-6.3%
Sep 2024+2.3%
Oct 2024+9.1%
Nov 2024-3.3%
Dec 2024-1.4%
Jan 2025+1.6%2025
Feb 2025-9.1%
Mar 2025-1.7%
Apr 2025-1.4%
May 2025+6.3%
Jun 2025+12%
Jul 2025+6.7%
Aug 2025+7.1%
Sep 2025+6.1%
Oct 2025-0.2%
Nov 2025+13%
Dec 2025+7.2%
Jan 2026+8.6%2026
Feb 2026-2.2%
Mar 2026-9.6%
Apr 2026+6.5%
May 2026+2.8%
Jun 2026+12%
Jul 2026+8.4%
Aug 2026+0.4%
Sep 2026-0.7%
Oct 2026+5.0%
Affiliated Managers Group Inc. returns by calendar month#
Every month of every year since 1998, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.
October 2026 so far: +4.96% — 15th of 29 Octobers since 1998 at the last close; the average October returned +3.0%.
| Month | −50%0+50% | Average | Median | Up | Best | Worst |
|---|---|---|---|---|---|---|
| Jan | +0.6% | +1.6% | 52% | +21.9% 2004 | -16.2% 2008 | |
| Feb | +1.0% | +1.6% | 52% | +27.0% 2021 | -21.4% 1999 | |
| Mar | +1.1% | +0.0% | 48% | +20.8% 2000 | -21.4% 2020 | |
| Apr | +3.0% | +1.6% | 66% | +36.3% 2009 | -15.5% 2000 | |
| May | -1.1% | -0.4% | 48% | +18.8% 2003 | -24.2% 2019 | |
| Jun | +1.8% | +3.2% | 55% | +35.8% 2000 | -18.9% 2016 | |
| Jul | +1.8% | +4.3% | 62% | +18.8% 2024 | -23.2% 2002 | |
| Aug | -1.7% | +0.2% | 52% | +17.3% 2000 | -45.7% 1998 | |
| Sep | -0.7% | -0.3% | 48% | +21.5% 2010 | -19.9% 2001 | |
| Oct | +3.0% | +4.9% | 64% | +23.6% 1998 | -44.0% 2008 | |
| Nov | +3.0% | +2.4% | 75% | +29.2% 2022 | -39.6% 2008 | |
| Dec | +6.0% | +3.3% | 68% | +49.7% 2008 | -12.3% 2018 |
Methodology#
Monthly returns are total returns (dividends reinvested), computed from AMG'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 Affiliated Managers Group Inc.'s average monthly return?
- Affiliated Managers Group Inc. (AMG) has averaged about 1.48% per month, positive in roughly 58% of months. The best month was Dec 2008 (+49.7%) and the worst was Aug 1998 (-45.7%).
More on Affiliated Managers Group Inc.
By month for: S&P 500 · S&P 500 Equal Weight · US Stock Market · Nasdaq-100