AJG
Arthur J. Gallagher & Co.Stock · FinancialsS&P 500 Equal Weight 0.2% · S&P 500 0.09% · Russell 1000 0.08% · US Stock Market 0.08% · Russell 3000 0.08% · MSCI World 0.06% · MSCI ACWI 0.05%$240.32-1.23%
as of market close, Sep 11, 2026
☾ AH — —
Arthur J. Gallagher & Co. monthly returns
Arthur J. Gallagher & Co. has averaged 1.26% per month, positive in 58% of months. Month-by-month returns for Arthur J. Gallagher & Co. (AJG) below, through September 11, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+1.3%
501 months
Best month
+32.2%
Apr 2009
Worst month
-32.7%
Feb 2009
Positive months
58%
of all months
Arthur J. Gallagher & Co. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Sep 2026 | -8.1% | |
| Aug 2026 | +5.1% | |
| Jul 2026 | +9.5% | |
| Jun 2026 | +13.7% | |
| May 2026 | -2.6% | |
| Apr 2026 | -4.7% | |
| Mar 2026 | -4.8% | |
| Feb 2026 | -8.5% | |
| Jan 2026 | -3.6% | |
| Dec 2025 | +4.8% | |
| Nov 2025 | -0.7% | |
| Oct 2025 | -19.5% | |
| Sep 2025 | +2.5% | |
| Aug 2025 | +5.4% | |
| Jul 2025 | -10.3% | |
| Jun 2025 | -7.7% | |
| May 2025 | +8.3% | |
| Apr 2025 | -7.1% | |
| Mar 2025 | +2.4% | |
| Feb 2025 | +11.9% | |
| Jan 2025 | +6.3% | |
| Dec 2024 | -8.9% | |
| Nov 2024 | +11.0% | |
| Oct 2024 | -0.1% | |
| Sep 2024 | -3.6% | |
| Aug 2024 | +3.2% | |
| Jul 2024 | +9.3% | |
| Jun 2024 | +2.6% | |
| May 2024 | +7.9% | |
| Apr 2024 | -6.1% | |
| Mar 2024 | +2.5% | |
| Feb 2024 | +5.3% | |
| Jan 2024 | +3.2% | |
| Dec 2023 | -9.7% | |
| Nov 2023 | +6.0% | |
| Oct 2023 | +3.3% | |
| Sep 2023 | -1.1% | |
| Aug 2023 | +7.6% | |
| Jul 2023 | -2.2% | |
| Jun 2023 | +9.9% | |
| May 2023 | -3.7% | |
| Apr 2023 | +8.8% | |
| Mar 2023 | +2.4% | |
| Feb 2023 | -4.3% | |
| Jan 2023 | +3.8% | |
| Dec 2022 | -5.1% | |
| Nov 2022 | +6.4% | |
| Oct 2022 | +9.3% | |
| Sep 2022 | -5.4% | |
| Aug 2022 | +1.4% | |
| Jul 2022 | +9.8% | |
| Jun 2022 | +1.0% | |
| May 2022 | -3.9% | |
| Apr 2022 | -3.5% | |
| Mar 2022 | +10.7% | |
| Feb 2022 | +0.2% | |
| Jan 2022 | -6.9% | |
| Dec 2021 | +4.5% | |
| Nov 2021 | -2.8% | |
| Oct 2021 | +12.8% | |
| Sep 2021 | +3.8% | |
| Aug 2021 | +3.1% | |
| Jul 2021 | -0.5% | |
| Jun 2021 | -4.1% | |
| May 2021 | +1.1% | |
| Apr 2021 | +16.2% | |
| Mar 2021 | +4.6% | |
| Feb 2021 | +3.8% | |
| Jan 2021 | -6.7% | |
| Dec 2020 | +7.6% | |
| Nov 2020 | +11.3% | |
| Oct 2020 | -1.8% | |
| Sep 2020 | +0.7% | |
| Aug 2020 | -2.0% | |
| Jul 2020 | +10.3% | |
| Jun 2020 | +3.9% | |
| May 2020 | +20.1% | |
| Apr 2020 | -3.7% | |
| Mar 2020 | -16.0% | |
| Feb 2020 | -5.0% | |
| Jan 2020 | +7.7% | |
| Dec 2019 | +2.6% | |
| Nov 2019 | +2.2% | |
| Oct 2019 | +1.8% | |
| Sep 2019 | -0.8% | |
| Aug 2019 | +0.3% | |
| Jul 2019 | +3.2% | |
| Jun 2019 | +4.5% | |
| May 2019 | +0.7% | |
| Apr 2019 | +7.1% | |
| Mar 2019 | -2.7% | |
| Feb 2019 | +8.0% | |
| Jan 2019 | +1.4% | |
| Dec 2018 | -3.9% | |
| Nov 2018 | +4.1% | |
| Oct 2018 | -0.6% | |
| Sep 2018 | +3.8% | |
| Aug 2018 | +1.1% | |
| Jul 2018 | +9.3% | |
| Jun 2018 | -1.5% | |
| May 2018 | -4.7% | |
| Apr 2018 | +1.8% | |
| Mar 2018 | +0.0% | |
| Feb 2018 | +1.2% | |
| Jan 2018 | +8.0% | |
| Dec 2017 | -3.9% | |
| Nov 2017 | +4.6% | |
| Oct 2017 | +2.9% | |
| Sep 2017 | +6.3% | |
| Aug 2017 | -0.8% | |
| Jul 2017 | +2.7% | |
| Jun 2017 | +0.9% | |
| May 2017 | +2.3% | |
| Apr 2017 | -1.3% | |
| Mar 2017 | -0.0% | |
| Feb 2017 | +5.8% | |
| Jan 2017 | +3.6% | |
| Dec 2016 | +3.2% | |
| Nov 2016 | +5.2% | |
| Oct 2016 | -5.2% |
Monthly total return (since Oct 2021)#
-10%0%10%
Oct 2021+13%
Nov 2021-2.8%
Dec 2021+4.5%
Jan 2022-6.9%2022
Feb 2022+0.16%
Mar 2022+11%
Apr 2022-3.5%
May 2022-3.9%
Jun 2022+1.0%
Jul 2022+9.8%
Aug 2022+1.4%
Sep 2022-5.4%
Oct 2022+9.3%
Nov 2022+6.4%
Dec 2022-5.1%
Jan 2023+3.8%2023
Feb 2023-4.3%
Mar 2023+2.4%
Apr 2023+8.8%
May 2023-3.7%
Jun 2023+9.9%
Jul 2023-2.2%
Aug 2023+7.6%
Sep 2023-1.1%
Oct 2023+3.3%
Nov 2023+6.0%
Dec 2023-9.7%
Jan 2024+3.2%2024
Feb 2024+5.3%
Mar 2024+2.5%
Apr 2024-6.1%
May 2024+7.9%
Jun 2024+2.6%
Jul 2024+9.3%
Aug 2024+3.2%
Sep 2024-3.6%
Oct 2024-0.06%
Nov 2024+11%
Dec 2024-8.9%
Jan 2025+6.3%2025
Feb 2025+12%
Mar 2025+2.4%
Apr 2025-7.1%
May 2025+8.3%
Jun 2025-7.7%
Jul 2025-10%
Aug 2025+5.4%
Sep 2025+2.5%
Oct 2025-19%
Nov 2025-0.75%
Dec 2025+4.8%
Jan 2026-3.6%2026
Feb 2026-8.5%
Mar 2026-4.8%
Apr 2026-4.7%
May 2026-2.6%
Jun 2026+14%
Jul 2026+9.5%
Aug 2026+5.1%
Sep 2026-8.1%
Methodology#
Monthly returns are total returns (dividends reinvested), computed from AJG'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 Arthur J. Gallagher & Co.'s average monthly return?
- Arthur J. Gallagher & Co. (AJG) has averaged about 1.26% per month, positive in roughly 58% of months. The best month was Apr 2009 (+32.2%) and the worst was Feb 2009 (-32.7%).
More on Arthur J. Gallagher & Co.
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