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Data provided bySource: Twelve Data
BIO
$366.36-1.11%
as of close, Nov 13, 2026
☾ AH $366.36 -1.11%
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Bio-Rad Laboratories Inc. monthly returns

Bio-Rad Laboratories Inc. has averaged 1.42% a month with dividends reinvested, and risen in 55% of months, through November 13, 2026. The table lists the most recent months; the chart, the last 5 years.

Average month
+1.4%
561 months
Best month
+46.4%
Sep 1980
Worst month
-39.9%
Oct 1987
Positive months
55%
of all months
Bio-Rad Laboratories Inc. total return by month
MonthTotal return
Nov 2026
-1.6%
Oct 2026
-1.5%
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%

Monthly total return (since Dec 2021)#

Bio-Rad Laboratories Inc. returns by calendar month#

Every month of every year since 1980, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.

November 2026 so far: -1.56% — 33rd of 47 Novembers since 1980 at the last close; the average November returned +2.6%.

Bio-Rad Laboratories Inc. returns by calendar month since 1980
Month−50%0+50%AverageUp
Jan+2.7%52%
Feb+0.2%57%
Mar+3.0%62%
Apr+4.1%64%
May+1.8%60%
Jun+0.3%51%
Jul+1.1%60%
Aug+0.8%43%
Sep-1.3%40%
Oct-0.3%47%
NovNovember 2026 so far: -1.6%+2.6%61%
Dec+2.1%63%

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. has averaged about 1.42% per month (dividends reinvested), positive in roughly 55% of months. The best month was Sep 1980 (+46.4%) and the worst was Oct 1987 (-39.9%).

More on Bio-Rad Laboratories Inc.