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Bio-Rad Laboratories, Inc. (BIO.B) stock

BIO.BNYSELaboratory Analytical InstrumentsFiscal year ends December 31Also trades as BIO
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026Score 8/3055% above fair value
$379.50+0.00 (0.00%)

Close on Oct 29, 2026Market cap $10.18BP/E 46.2Yield –

Price history

Bio-Rad Laboratories share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 29, 2026
$379.50
0.00% on the day
52-week range
$244.54 – $380.57
-0.3% from the high
Change over 52 weeks
+18.2%
From $321.12 on Oct 29, 2025
Average volume
35
Shares a day, last 90 sessions
DateOpenHighLowCloseChangeVolume
Oct 29, 2026$379.50$379.50$379.50$379.500.00%31
Oct 28, 2026$379.50$379.50$379.50$379.500.00%1
Oct 27, 2026$380.57$380.57$379.50$379.50+4.22%231
Oct 26, 2026$364.15$364.15$364.15$364.150.00%9
Oct 23, 2026$364.15$364.15$364.15$364.150.00%41
Oct 22, 2026$367.66$367.66$364.15$364.150.00%9
Oct 21, 2026$354.28$364.15$354.28$364.150.00%8
Oct 20, 2026$355.08$364.15$355.08$364.150.00%10
Oct 19, 2026$364.15$364.15$364.15$364.150.00%24
Oct 16, 2026$364.15$364.15$364.15$364.150.00%37
Oct 15, 2026$364.15$364.15$364.15$364.150.00%1
Oct 14, 2026$364.21$364.21$364.15$364.15-0.25%232
Oct 13, 2026$365.08$365.08$365.08$365.080.00%40
Oct 12, 2026$365.08$365.08$365.08$365.080.00%4
Oct 9, 2026$365.08$365.08$365.08$365.080.00%7
Oct 8, 2026$365.08$365.08$365.08$365.080.00%11
Oct 7, 2026$365.08$365.08$365.08$365.080.00%12
Oct 6, 2026$365.08$365.08$365.08$365.080.00%10
Oct 5, 2026$365.08$365.08$365.08$365.080.00%10
Oct 2, 2026$365.08$365.08$365.08$365.080.00%12
Oct 1, 2026$365.08$365.08$365.08$365.080.00%8
Sep 30, 2026$365.08$365.08$365.08$365.080.00%3
Sep 29, 2026$365.08$365.08$365.08$365.080.00%11
Sep 28, 2026$365.08$365.08$365.08$365.080.00%8
Sep 25, 2026$365.08$365.08$365.08$365.080.00%8
Sep 24, 2026$365.08$365.08$365.08$365.080.00%9
Sep 23, 2026$365.08$365.08$365.08$365.080.00%108
Sep 22, 2026$365.08$365.08$365.08$365.080.00%10
Sep 21, 2026$365.08$365.08$365.08$365.080.00%5
Sep 18, 2026$365.08$365.08$365.08$365.080.00%9

Seasonality

BIO.B return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average0.8%-0.7%0.4%1.9%0.2%-0.5%6.1%4.6%-1.7%-2.2%4.3%-1.4%
Months up6 of 105 of 107 of 106 of 105 of 104 of 109 of 106 of 103 of 105 of 108 of 93 of 9
20260.7%-14.0%3.5%7.6%1.6%-2.5%4.3%18.0%0.0%3.9%
20259.8%-12.7%-22.5%-3.1%6.7%0.0%-1.2%0.0%15.3%6.4%2.5%0.0%
2024-1.0%2.9%1.7%-15.7%0.0%1.3%3.8%11.1%-0.0%2.5%0.3%-3.1%
20230.0%0.0%14.7%0.0%-19.4%-0.7%4.4%0.0%-8.4%-23.1%12.4%4.5%
2022-17.0%6.2%-7.8%-11.8%-2.5%-6.6%2.7%7.1%-19.3%-15.1%13.9%0.0%
2021-3.1%7.9%-3.5%9.1%-5.6%7.3%9.0%9.3%-0.4%-4.0%2.8%-3.6%
20201.6%-6.8%0.4%24.0%7.1%-6.3%19.6%-0.6%-2.2%16.3%-8.6%6.2%
20193.5%14.7%11.0%1.2%-1.5%1.4%5.8%4.0%1.1%1.3%0.6%6.5%
201810.9%-6.8%1.9%4.3%9.7%-0.4%7.8%5.0%-7.9%-8.3%0.4%-16.1%
20172.3%1.8%4.7%4.1%6.1%1.9%5.1%-7.7%4.4%-2.1%14.5%-6.8%