COO
The Cooper Companies Inc.Stock · HealthcareS&P 500 Equal Weight 0.2% · Nasdaq Composite 0.02% · S&P 500 0.02% · Russell 3000 0.02% · Russell 1000 0.02% · US Stock Market 0.02% · MSCI ACWI 0.01% · MSCI World 0.01%$55.29+2.81%
as of market close, Sep 18, 2026
☾ AH $55.29 +0.00%
The Cooper Companies Inc. monthly returns
The Cooper Companies Inc. has averaged 1.30% per month, positive in 54% of months. Month-by-month returns for The Cooper Companies Inc. (COO) below, through September 18, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+1.3%
513 months
Best month
+87.5%
Apr 1984
Worst month
-52.6%
Oct 2008
Positive months
54%
of all months
The Cooper Companies Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Sep 2026 | -21.1% | |
| Aug 2026 | -3.1% | |
| Jul 2026 | +0.8% | |
| Jun 2026 | +17.2% | |
| May 2026 | -2.7% | |
| Apr 2026 | -12.0% | |
| Mar 2026 | -14.5% | |
| Feb 2026 | +2.8% | |
| Jan 2026 | -0.7% | |
| Dec 2025 | +5.2% | |
| Nov 2025 | +11.5% | |
| Oct 2025 | +2.0% | |
| Sep 2025 | +1.7% | |
| Aug 2025 | -4.7% | |
| Jul 2025 | -0.7% | |
| Jun 2025 | +4.2% | |
| May 2025 | -16.4% | |
| Apr 2025 | -3.2% | |
| Mar 2025 | -6.7% | |
| Feb 2025 | -6.4% | |
| Jan 2025 | +5.0% | |
| Dec 2024 | -12.0% | |
| Nov 2024 | -0.2% | |
| Oct 2024 | -5.1% | |
| Sep 2024 | +4.4% | |
| Aug 2024 | +13.3% | |
| Jul 2024 | +6.9% | |
| Jun 2024 | -7.4% | |
| May 2024 | +5.9% | |
| Apr 2024 | -12.2% | |
| Mar 2024 | +8.4% | |
| Feb 2024 | +0.4% | |
| Jan 2024 | -1.4% | |
| Dec 2023 | +12.3% | |
| Nov 2023 | +8.1% | |
| Oct 2023 | -2.0% | |
| Sep 2023 | -14.0% | |
| Aug 2023 | -5.4% | |
| Jul 2023 | +2.1% | |
| Jun 2023 | +3.2% | |
| May 2023 | -2.6% | |
| Apr 2023 | +2.2% | |
| Mar 2023 | +14.2% | |
| Feb 2023 | -6.3% | |
| Jan 2023 | +5.5% | |
| Dec 2022 | +4.5% | |
| Nov 2022 | +15.7% | |
| Oct 2022 | +3.6% | |
| Sep 2022 | -8.2% | |
| Aug 2022 | -12.1% | |
| Jul 2022 | +4.4% | |
| Jun 2022 | -10.7% | |
| May 2022 | -2.9% | |
| Apr 2022 | -13.5% | |
| Mar 2022 | +2.1% | |
| Feb 2022 | +2.7% | |
| Jan 2022 | -4.9% | |
| Dec 2021 | +11.3% | |
| Nov 2021 | -9.7% | |
| Oct 2021 | +0.9% | |
| Sep 2021 | -8.3% | |
| Aug 2021 | +6.9% | |
| Jul 2021 | +6.4% | |
| Jun 2021 | +0.7% | |
| May 2021 | -4.2% | |
| Apr 2021 | +7.0% | |
| Mar 2021 | -0.5% | |
| Feb 2021 | +6.1% | |
| Jan 2021 | +0.2% | |
| Dec 2020 | +8.4% | |
| Nov 2020 | +5.1% | |
| Oct 2020 | -5.4% | |
| Sep 2020 | +7.2% | |
| Aug 2020 | +11.1% | |
| Jul 2020 | -0.2% | |
| Jun 2020 | -10.5% | |
| May 2020 | +10.6% | |
| Apr 2020 | +4.0% | |
| Mar 2020 | -15.1% | |
| Feb 2020 | -6.4% | |
| Jan 2020 | +8.0% | |
| Dec 2019 | +2.6% | |
| Nov 2019 | +7.6% | |
| Oct 2019 | -2.0% | |
| Sep 2019 | -4.1% | |
| Aug 2019 | -8.2% | |
| Jul 2019 | +0.2% | |
| Jun 2019 | +13.1% | |
| May 2019 | +2.7% | |
| Apr 2019 | -2.1% | |
| Mar 2019 | +3.6% | |
| Feb 2019 | +2.6% | |
| Jan 2019 | +9.5% | |
| Dec 2018 | -8.7% | |
| Nov 2018 | +7.9% | |
| Oct 2018 | -6.8% | |
| Sep 2018 | +8.4% | |
| Aug 2018 | -1.8% | |
| Jul 2018 | +10.7% | |
| Jun 2018 | +4.0% | |
| May 2018 | -1.0% | |
| Apr 2018 | -0.0% | |
| Mar 2018 | -0.7% | |
| Feb 2018 | -5.8% | |
| Jan 2018 | +12.3% | |
| Dec 2017 | -9.7% | |
| Nov 2017 | +0.4% | |
| Oct 2017 | +1.3% | |
| Sep 2017 | -5.5% | |
| Aug 2017 | +2.9% | |
| Jul 2017 | +1.9% | |
| Jun 2017 | +9.4% | |
| May 2017 | +9.2% | |
| Apr 2017 | +0.2% | |
| Mar 2017 | +0.4% | |
| Feb 2017 | +7.9% | |
| Jan 2017 | +5.6% | |
| Dec 2016 | +6.3% | |
| Nov 2016 | -6.6% | |
| Oct 2016 | -1.8% |
Monthly total return (since Oct 2021)#
-20%-10%0%10%20%
Oct 2021+0.87%
Nov 2021-9.7%
Dec 2021+11%
Jan 2022-4.9%2022
Feb 2022+2.7%
Mar 2022+2.1%
Apr 2022-14%
May 2022-2.9%
Jun 2022-11%
Jul 2022+4.4%
Aug 2022-12%
Sep 2022-8.2%
Oct 2022+3.6%
Nov 2022+16%
Dec 2022+4.5%
Jan 2023+5.5%2023
Feb 2023-6.3%
Mar 2023+14%
Apr 2023+2.2%
May 2023-2.6%
Jun 2023+3.2%
Jul 2023+2.1%
Aug 2023-5.4%
Sep 2023-14%
Oct 2023-2.0%
Nov 2023+8.1%
Dec 2023+12%
Jan 2024-1.4%2024
Feb 2024+0.37%
Mar 2024+8.4%
Apr 2024-12%
May 2024+5.9%
Jun 2024-7.4%
Jul 2024+6.9%
Aug 2024+13%
Sep 2024+4.4%
Oct 2024-5.1%
Nov 2024-0.21%
Dec 2024-12%
Jan 2025+5.0%2025
Feb 2025-6.4%
Mar 2025-6.7%
Apr 2025-3.2%
May 2025-16%
Jun 2025+4.2%
Jul 2025-0.66%
Aug 2025-4.7%
Sep 2025+1.7%
Oct 2025+2.0%
Nov 2025+11%
Dec 2025+5.2%
Jan 2026-0.71%2026
Feb 2026+2.8%
Mar 2026-15%
Apr 2026-12%
May 2026-2.7%
Jun 2026+17%
Jul 2026+0.81%
Aug 2026-3.1%
Sep 2026-21%
Methodology#
Monthly returns are total returns (dividends reinvested), computed from COO'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 The Cooper Companies Inc.'s average monthly return?
- The Cooper Companies Inc. (COO) has averaged about 1.30% per month, positive in roughly 54% of months. The best month was Apr 1984 (+87.5%) and the worst was Oct 2008 (-52.6%).
More on The Cooper Companies Inc.
By month for: S&P 500 · S&P 500 Equal Weight · US Stock Market · Nasdaq-100