BIO
$377.71-0.48%
as of close, Sep 30, 2026
☾ AH $377.71 -0.48%
Bio-Rad Laboratories Inc.Stock · IndustrialsRussell 3000 0.008%Russell 1000 0.008%US Stock Market 0.007%
Bio-Rad Laboratories Inc. monthly returns
Bio-Rad Laboratories Inc. has averaged 1.40% per month, positive in 55% of months. Month-by-month returns for Bio-Rad Laboratories Inc. (BIO) below, through September 30, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.
Average month
+1.4%
549 months
Best month
+42.5%
Feb 2000
Worst month
-39.9%
Oct 1987
Positive months
55%
of all months
Bio-Rad Laboratories Inc. monthly returns#
| Month | Path | Total return |
|---|---|---|
| Sep 2026 | -2.2% | |
| Aug 2026 | +18.6% | |
| Jul 2026 | +10.9% | |
| Jun 2026 | -6.0% | |
| May 2026 | +11.6% | |
| Apr 2026 | +0.5% | |
| Mar 2026 | +0.1% | |
| Feb 2026 | -5.2% | |
| Jan 2026 | -3.1% | |
| Dec 2025 | -6.7% | |
| Nov 2025 | +1.7% | |
| Oct 2025 | +14.0% | |
| Sep 2025 | -5.9% | |
| Aug 2025 | +23.1% | |
| Jul 2025 | +0.3% | |
| Jun 2025 | +6.3% | |
| May 2025 | -7.0% | |
| Apr 2025 | +0.2% | |
| Mar 2025 | -8.1% | |
| Feb 2025 | -26.5% | |
| Jan 2025 | +9.9% | |
| Dec 2024 | -3.5% | |
| Nov 2024 | -4.9% | |
| Oct 2024 | +7.1% | |
| Sep 2024 | -0.8% | |
| Aug 2024 | -0.3% | |
| Jul 2024 | +23.9% | |
| Jun 2024 | -4.8% | |
| May 2024 | +6.3% | |
| Apr 2024 | -22.0% | |
| Mar 2024 | +6.1% | |
| Feb 2024 | +1.6% | |
| Jan 2024 | -0.6% | |
| Dec 2023 | +5.9% | |
| Nov 2023 | +10.8% | |
| Oct 2023 | -23.2% | |
| Sep 2023 | -10.4% | |
| Aug 2023 | -1.3% | |
| Jul 2023 | +6.9% | |
| Jun 2023 | +1.5% | |
| May 2023 | -17.2% | |
| Apr 2023 | -5.9% | |
| Mar 2023 | +0.2% | |
| Feb 2023 | +2.2% | |
| Jan 2023 | +11.2% | |
| Dec 2022 | +1.4% | |
| Nov 2022 | +17.9% | |
| Oct 2022 | -15.7% | |
| Sep 2022 | -14.0% | |
| Aug 2022 | -13.9% | |
| Jul 2022 | +13.8% | |
| Jun 2022 | -8.0% | |
| May 2022 | +5.0% | |
| Apr 2022 | -9.1% | |
| Mar 2022 | -10.0% | |
| Feb 2022 | +4.4% | |
| Jan 2022 | -20.6% | |
| Dec 2021 | +0.3% | |
| Nov 2021 | -5.2% | |
| Oct 2021 | +6.5% | |
| Sep 2021 | -7.3% | |
| Aug 2021 | +8.8% | |
| Jul 2021 | +14.8% | |
| Jun 2021 | +7.0% | |
| May 2021 | -4.4% | |
| Apr 2021 | +10.3% | |
| Mar 2021 | -2.3% | |
| Feb 2021 | +1.9% | |
| Jan 2021 | -1.6% | |
| Dec 2020 | +8.3% | |
| Nov 2020 | -8.2% | |
| Oct 2020 | +13.8% | |
| Sep 2020 | +1.4% | |
| Aug 2020 | -3.1% | |
| Jul 2020 | +16.3% | |
| Jun 2020 | -8.1% | |
| May 2020 | +11.6% | |
| Apr 2020 | +25.5% | |
| Mar 2020 | -0.4% | |
| Feb 2020 | -2.5% | |
| Jan 2020 | -2.5% | |
| Dec 2019 | +0.2% | |
| Nov 2019 | +11.4% | |
| Oct 2019 | -0.3% | |
| Sep 2019 | -1.5% | |
| Aug 2019 | +7.2% | |
| Jul 2019 | +0.7% | |
| Jun 2019 | +8.9% | |
| May 2019 | -4.7% | |
| Apr 2019 | -1.6% | |
| Mar 2019 | +12.8% | |
| Feb 2019 | +8.4% | |
| Jan 2019 | +7.6% | |
| Dec 2018 | -15.4% | |
| Nov 2018 | +0.6% | |
| Oct 2018 | -12.8% | |
| Sep 2018 | -3.8% | |
| Aug 2018 | +6.1% | |
| Jul 2018 | +6.3% | |
| Jun 2018 | +0.5% | |
| May 2018 | +13.2% | |
| Apr 2018 | +1.5% | |
| Mar 2018 | -7.4% | |
| Feb 2018 | +4.5% | |
| Jan 2018 | +8.3% | |
| Dec 2017 | -12.0% | |
| Nov 2017 | +23.4% | |
| Oct 2017 | -1.1% | |
| Sep 2017 | +2.0% | |
| Aug 2017 | -7.6% | |
| Jul 2017 | +4.1% | |
| Jun 2017 | +1.3% | |
| May 2017 | +2.4% | |
| Apr 2017 | +9.5% | |
| Mar 2017 | +2.4% | |
| Feb 2017 | +2.4% | |
| Jan 2017 | +4.3% | |
| Dec 2016 | +5.1% | |
| Nov 2016 | +9.8% | |
| Oct 2016 | -3.5% |
Monthly total return (since Oct 2021)#
-20%-10%0%10%20%
Oct 2021+6.5%
Nov 2021-5.2%
Dec 2021+0.31%
Jan 2022-21%2022
Feb 2022+4.4%
Mar 2022-10%
Apr 2022-9.1%
May 2022+5.0%
Jun 2022-8.0%
Jul 2022+14%
Aug 2022-14%
Sep 2022-14%
Oct 2022-16%
Nov 2022+18%
Dec 2022+1.4%
Jan 2023+11%2023
Feb 2023+2.2%
Mar 2023+0.25%
Apr 2023-5.9%
May 2023-17%
Jun 2023+1.5%
Jul 2023+6.9%
Aug 2023-1.3%
Sep 2023-10%
Oct 2023-23%
Nov 2023+11%
Dec 2023+5.9%
Jan 2024-0.62%2024
Feb 2024+1.6%
Mar 2024+6.1%
Apr 2024-22%
May 2024+6.3%
Jun 2024-4.8%
Jul 2024+24%
Aug 2024-0.31%
Sep 2024-0.81%
Oct 2024+7.1%
Nov 2024-4.9%
Dec 2024-3.5%
Jan 2025+9.9%2025
Feb 2025-27%
Mar 2025-8.1%
Apr 2025+0.21%
May 2025-7.0%
Jun 2025+6.3%
Jul 2025+0.26%
Aug 2025+23%
Sep 2025-5.9%
Oct 2025+14%
Nov 2025+1.7%
Dec 2025-6.7%
Jan 2026-3.1%2026
Feb 2026-5.2%
Mar 2026+0.11%
Apr 2026+0.49%
May 2026+12%
Jun 2026-6.0%
Jul 2026+11%
Aug 2026+19%
Sep 2026-2.2%
Methodology#
Monthly returns are total returns (dividends reinvested), computed from BIO'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 Bio-Rad Laboratories Inc.'s average monthly return?
- Bio-Rad Laboratories Inc. (BIO) has averaged about 1.40% per month, positive in roughly 55% of months. The best month was Feb 2000 (+42.5%) and the worst was Oct 1987 (-39.9%).
More on Bio-Rad Laboratories Inc.
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