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Bio-Rad Laboratories, Inc. (BIO) stock

BIONYSELaboratory Analytical InstrumentsFiscal year ends December 31Also trades as BIO.B
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026Score 8/3055% above fair value
$372.18−12.22 (-3.18%)

Close on Oct 30, 2026Market cap $9.99BP/E 45.3Yield –

Price history

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

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Close, Oct 30, 2026
$372.18
-3.18% on the day
52-week range
$236.73 – $396.23
-6.1% from the high
Change over 52 weeks
+22.2%
From $304.61 on Oct 30, 2025
Average volume
272,795
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$371.80$390.16$368.45$372.18+0.60%1,113,021
Oct 19, 2026$355.30$371.31$347.29$369.95+4.59%1,189,421
Oct 12, 2026$369.85$371.07$350.77$353.70-3.40%1,066,727
Oct 5, 2026$368.07$390.00$353.97$366.16-0.81%1,144,852
Sep 28, 2026$376.98$383.95$353.30$369.14-3.11%1,251,135
Sep 21, 2026$381.58$389.38$373.47$381.00+1.22%1,491,129
Sep 14, 2026$365.66$385.71$365.66$376.41+1.92%1,603,842
Sep 8, 2026$390.73$390.73$368.56$369.32-4.35%995,052
Aug 31, 2026$393.85$394.29$376.20$386.11-0.41%1,103,843
Aug 24, 2026$384.09$396.23$373.40$387.70+2.02%1,270,383
Aug 17, 2026$359.29$385.92$351.80$380.03+6.67%1,360,894
Aug 10, 2026$350.49$365.00$347.86$356.26+1.08%1,088,201
Aug 3, 2026$324.98$353.33$319.49$352.47+8.29%1,663,809
Jul 27, 2026$313.45$337.97$312.29$325.48+3.50%1,688,146
Jul 20, 2026$301.71$318.70$285.39$314.46+3.32%1,740,402
Jul 13, 2026$295.17$305.68$292.72$304.36+2.79%1,343,093
Jul 6, 2026$298.82$302.16$281.79$296.11-0.25%1,248,290
Jun 29, 2026$300.00$302.55$287.94$296.86-1.31%1,115,623
Jun 22, 2026$281.15$305.00$270.00$300.79+6.50%2,278,294
Jun 15, 2026$288.77$294.43$280.48$282.44-1.22%1,103,014
Jun 8, 2026$296.50$298.58$284.57$285.94-2.85%1,793,822
Jun 1, 2026$311.10$312.27$291.40$294.32-5.81%1,801,011
May 26, 2026$287.26$319.86$284.27$312.48+8.60%2,203,175
May 18, 2026$274.72$291.47$267.83$287.74+16.24%2,996,930
May 11, 2026$254.35$254.35$236.73$247.53-2.67%1,912,622
May 4, 2026$255.85$264.06$251.32$254.32-0.87%2,142,560
Apr 27, 2026$287.80$294.05$242.28$256.55-10.87%2,503,142
Apr 20, 2026$297.46$312.85$274.90$287.84-3.74%1,275,043
Apr 13, 2026$278.83$302.32$278.83$299.02+7.08%1,096,072
Apr 6, 2026$279.57$288.72$270.37$279.25-0.26%1,451,384
Mar 30, 2026$268.76$284.45$265.64$279.99+5.50%1,216,705
Mar 23, 2026$268.70$277.82$260.59$265.40+0.34%1,933,468
Mar 16, 2026$265.57$272.40$258.95$264.49+0.64%1,573,833
Mar 9, 2026$268.20$272.04$259.56$262.80-2.61%1,246,250
Mar 2, 2026$275.41$288.81$267.55$269.85-3.09%1,415,163
Feb 23, 2026$269.26$280.52$267.13$278.44+2.63%1,414,658
Feb 17, 2026$256.00$272.62$254.59$271.30+5.75%1,353,156
Feb 9, 2026$298.17$301.47$251.00$256.56-14.91%2,159,581
Feb 2, 2026$289.11$313.41$289.11$301.50+2.66%1,171,668
Jan 26, 2026$295.59$302.59$287.46$293.70-0.97%1,182,693
Jan 20, 2026$308.35$316.63$293.94$296.57-5.41%1,117,254
Jan 12, 2026$325.80$328.56$313.47$313.53-3.18%999,048
Jan 5, 2026$302.25$328.25$302.25$323.82+6.08%1,251,943
Dec 29, 2025$303.88$307.31$300.26$305.27+0.46%483,113
Dec 22, 2025$302.02$307.07$298.78$303.88+0.78%521,527
Dec 15, 2025$310.00$312.81$295.01$301.53-2.14%1,144,682
Dec 8, 2025$314.86$319.50$306.36$308.13-3.01%675,106
Dec 1, 2025$321.44$328.07$311.81$317.69-2.21%903,354
Nov 24, 2025$314.85$334.53$311.63$324.86+2.58%741,465
Nov 17, 2025$313.67$320.14$296.15$316.70+1.13%847,880
Nov 10, 2025$307.99$328.52$305.97$313.15+2.48%763,585
Nov 3, 2025$317.04$319.85$301.92$305.56-4.38%899,426

Seasonality

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

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average1.3%-0.9%-0.7%0.9%1.7%-0.1%9.8%3.8%-4.2%-1.3%5.3%-2.4%
Months up5 of 107 of 105 of 106 of 106 of 106 of 1010 of 105 of 102 of 104 of 106 of 95 of 9
2026-3.1%-5.2%0.1%0.5%11.6%-6.0%10.9%18.6%-2.2%-1.5%
20259.9%-26.5%-8.1%0.2%-7.0%6.3%0.3%23.1%-5.9%14.0%1.7%-6.7%
2024-0.6%1.6%6.1%-22.0%6.3%-4.8%23.9%-0.3%-0.8%7.1%-4.9%-3.5%
202311.2%2.2%0.2%-5.9%-17.2%1.5%6.9%-1.3%-10.4%-23.2%10.8%5.9%
2022-20.6%4.4%-10.0%-9.1%5.0%-8.0%13.8%-13.9%-14.0%-15.7%17.9%1.4%
2021-1.6%1.9%-2.3%10.3%-4.4%7.0%14.8%8.8%-7.3%6.5%-5.2%0.3%
2020-2.5%-2.5%-0.4%25.5%11.6%-8.1%16.3%-3.1%1.4%13.8%-8.2%8.3%
20197.6%8.4%12.8%-1.6%-4.7%8.9%0.7%7.2%-1.5%-0.3%11.4%0.2%
20188.3%4.5%-7.4%1.5%13.2%0.5%6.3%6.1%-3.8%-12.8%0.6%-15.4%
20174.3%2.4%2.4%9.5%2.4%1.3%4.1%-7.6%2.0%-1.1%23.4%-12.0%