# Bio-Rad Laboratories, Inc.Class A (BIO)

> Bio-Rad Laboratories, Inc.Class A (BIO) trades at $371.21 (-2.31%) as of 9:24:03 AM EST on Nov 5, 2026, +3.03% over the past month. Market cap is $10.16B, with 4.8 days to cover in short interest.

Canonical: https://massive.com/quote/bio
Data as of: 2026-11-05T14:24:03.052Z (15-minute delayed)
Source: Massive (https://massive.com/docs/llms.txt)

## Price

**$371.21** -8.78 (-2.31%)
As of 9:24:03 AM EST on Nov 5, 2026 · 15-minute delayed
NYSE · usd

## Stock performance

How Bio-Rad Laboratories, Inc.Class A (BIO) stock has performed from one day to one year, with its 52-week range.

| Period | Return |
| --- | --- |
| 1D | +1.35% |
| 1W | -1.33% |
| 1M | +3.03% |
| YTD | +25.41% |
| 1Y | +23.96% |
| 52-wk range | $236.73 – $396.23 |

From daily closes through Nov 4, 2026.

## Key statistics

Today's trading snapshot for BIO: day range, open, previous close, volume and market cap.

| Measure | Value |
| --- | --- |
| Day range | — |
| Open | — |
| Prev close | $379.99 |
| Volume | 0 |
| Market cap | $10.16B |
| Shares out | 21.68M |

## Valuation and profitability ratios

Valuation and profitability ratios for Bio-Rad Laboratories, Inc.Class A: P/E, P/S, P/B, ROE and more.

| Measure | Value |
| --- | --- |
| P/E | 45.07 |
| P/S | 3.87 |
| P/B | 1.40 |
| P/FCF | 28.39 |
| ROE | 3.1% |
| ROA | 2.2% |
| Debt/Equity | 0.17 |
| Div yield | 0.00% |

As of Nov 3, 2026

## Insider trading

[Bio-Rad Laboratories, Inc.Class A (BIO) insider trading](https://massive.com/quote/bio/insider-trading.md): open-market Form 4 buys and sells by Bio-Rad Laboratories, Inc.Class A insiders over the last 12 months.

## 8-K filings

Material corporate events Bio-Rad Laboratories, Inc.Class A has disclosed to the SEC on Form 8-K.

- Nov 4, 2026 · [Quarterly earnings](https://massive.com/quote/sec-filings/8-k/earnings-releases.md)
  “On November 4, 2026, Bio-Rad Laboratories, Inc. (the "Company") announced its financial results for the quarter ended September 30, 2026.”
- Aug 4, 2026 · Facility closure
  “The restructuring plan impacts our operations and functions throughout the world and includes the elimination of certain positions, the consolidation of certain functions, and the closure of various facilities.”
- Apr 30, 2026 · Investor presentation
  “Also on April 30, 2026, the Company posted supplemental earnings materials with respect to its financial results for the quarter ended March 31, 2026 to its website (the "Supplemental Earnings Presentation"), which can be accessed at www.bio-rad.com in the Investor Relations section under the subheading "Events & Presentations".”
- Apr 24, 2026 · Shareholder proposal outcome
  “The stockholder proposal regarding dual class capital structure was not approved since the proposal did not receive the affirmative vote of a majority of the voting power of the holders of Class A and Class B Common Stock.”
- Feb 12, 2026 · Investor presentation
  “Also on February 12, 2026, the Company posted supplemental earnings materials with respect to its financial results for the quarter ended December 31, 2025 to its website (the "Supplemental Earnings Presentation"), which can be accessed at www.bio-rad.com in the Investor Relations section under the subheading "Events & Presentations."”

## Similar companies

Public companies in a similar business to Bio-Rad Laboratories, Inc.Class A.

- [BIO.B](https://massive.com/quote/bio.b.md) Bio-Rad Laboratories, Inc. Class B
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- [TMO](https://massive.com/quote/tmo.md) Thermo Fisher Scientific, Inc. (-0.60%)
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- [DHR](https://massive.com/quote/dhr.md) Danaher Corporation (+0.31%)
- [TECH](https://massive.com/quote/tech.md) Bio-Techne Corp. (+0.08%)

Daily change in the latest session, 15-minute delayed.

## BIO short interest

How heavily BIO is shorted: shares short, days to cover and average daily volume.

| Measure | Value |
| --- | --- |
| Days to cover | 4.8 |
| Short interest | 1.1M |
| Avg volume | 226.56K |

As of Oct 15, 2026 · reported to FINRA twice monthly.

## BIO news

The latest news and headlines about Bio-Rad Laboratories, Inc.Class A (BIO).

- [Bio-Rad Laboratories (BIO) Q3 Earnings Top Estimates](https://www.zacks.com/stock/news/3023536/bio-rad-laboratories-bio-q3-earnings-top-estimates?cid=CS-ZC-FT-fundamental_analysis|yseop_template_4-3023536) · Zacks Investment Research · Nov 4, 2026 · neutral sentiment
- [Neogen (NEOG) Q1 Earnings and Revenues Beat Estimates](https://www.zacks.com/stock/news/3001351/neogen-neog-q1-earnings-and-revenues-beat-estimates?cid=CS-ZC-FT-fundamental_analysis|yseop_template_4-3001351) · Zacks Investment Research · Oct 6, 2026 · positive sentiment
- [Global Microfluidics Market by Product Type, Application, End User, and Region, 2026-2036 \| $48.04 Billion Opportunity Driven by Point-of-Care Diagnostics and Automation](https://www.globenewswire.com/news-release/2026/10/06/3375232/28124/en/global-microfluidics-market-by-product-type-application-end-user-and-region-2026-2036-48-04-billion-opportunity-driven-by-point-of-care-diagnostics-and-automation.html) · GlobeNewswire Inc. · Oct 6, 2026 · positive sentiment
- [Europe Point of Care Diagnostics Market Size and Forecast, 2021 - 2031 \| Market to Reach US$21.4 Billion by 2031 as Rapid Testing and Molecular Innovation Drive 13.4% CAGR](https://www.globenewswire.com/news-release/2026/10/05/3374728/28124/en/europe-point-of-care-diagnostics-market-size-and-forecast-2021-2031-market-to-reach-us-21-4-billion-by-2031-as-rapid-testing-and-molecular-innovation-drive-13-4-cagr.html) · GlobeNewswire Inc. · Oct 5, 2026 · positive sentiment
- [Immunogenomics Market Size, Share, Trends, and Growth Forecast, 2026-2033 \| NGS and Personalized Medicine Drive Market Toward USD 9.82 Billion at 5.97% CAGR](https://www.globenewswire.com/news-release/2026/10/05/3374384/28124/en/immunogenomics-market-size-share-trends-and-growth-forecast-2026-2033-ngs-and-personalized-medicine-drive-market-toward-usd-9-82-billion-at-5-97-cagr.html) · GlobeNewswire Inc. · Oct 5, 2026 · positive sentiment

## About Bio-Rad Laboratories, Inc.Class A

Bio-Rad Laboratories, headquartered in Hercules, California, develops, manufactures, and sells products and solutions for the clinical diagnostics and life sciences markets. In clinical diagnostics (60% of sales), Bio-Rad sells test systems and specialized quality controls for clinical laboratories. In life sciences (40% of sales), it develops and manufactures instruments and reagents used in research, biopharmaceutical production, and food testing and has a leadership position in dPCR technology. The company is geographically diverse, with major markets in the Americas (about 40% of sales), Europe (about 30%), Asia (about 30%), and other. Bio-Rad owns approximately 33% of Sartorius, a lab and bioprocessing supplier that specializes in single-use technology used in biologics manufacturing.

| Measure | Value |
| --- | --- |
| Exchange | NYSE |
| Market | stocks |
| Type | CS |
| Currency | USD |
| Industry | LABORATORY ANALYTICAL INSTRUMENTS |
| Employees | 7.45K |
| Listed | Feb 29, 1980 |

[Company website](https://www.bio-rad.com)

## FAQ

### What is the Bio-Rad Laboratories, Inc.Class A (BIO) stock price today?

Bio-Rad Laboratories, Inc.Class A (BIO) is trading at $371.21 (-2.31% on the day) as of 9:24:03 AM EST on Nov 5, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

### What is Bio-Rad Laboratories, Inc.Class A?

Bio-Rad Laboratories, headquartered in Hercules, California, develops, manufactures, and sells products and solutions for the clinical diagnostics and life sciences markets.

### What is the short interest in BIO?

As of Oct 15, 2026, BIO has 1.1M shares short and 4.8 days to cover.

### What exchange is BIO listed on?

Bio-Rad Laboratories, Inc.Class A (BIO) trades on NYSE in USD, in the LABORATORY ANALYTICAL INSTRUMENTS industry.

## Live data

Prices here are 15-minute delayed. For real-time BIO quotes and the full history behind this page, use the Massive API or MCP server:

- `GET https://api.massive.com/v3/snapshot?ticker.any_of=BIO`

Requests need a Massive API key. API reference for agents: https://massive.com/docs/llms.txt. Connect an AI agent through the Massive MCP server: https://massive.com/docs/ai-tools.

## Related

- [Bio-Rad Laboratories, Inc.Class A (BIO) insider trading](https://massive.com/quote/bio/insider-trading.md)
- [SEC 8-K events](https://massive.com/quote/sec-filings/8-k.md)
- [Markets overview](https://massive.com/quote/index.md)

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