Bio-Rad Laboratories, Inc. (BIO) Stock Chart
BIO price chart
Daily prices adjusted for splits and dividends. 1D and 5D show delayed intraday prices. Markers: E earnings, D dividend, S split.
Technical snapshot
Key levels & statistics
BIO performance vs the market
Total return, dividends reinvestedBIO monthly returns
BIO historical prices
BIO dividends & splits
About the BIO chart
Bio-Rad Laboratories (BIO) closed at $353.70 on October 16, 2026, up 16.7% so far this year. The stock is trading 13.8% above its 200-day moving average of $310.86, which technical analysts usually read as a long-term uptrend. Over the past year BIO returned +13.2% including dividends, behind the S&P 500 (+16.8%).
This page charts the full trading history of Bio-Rad Laboratories, Inc. stock. Daily prices come from EODHD and are adjusted for stock splits and dividends, so returns over long periods are comparable. For the latest quote, company profile, earnings and news, see the BIO stock overview.
BIO chart FAQ
What is Bio-Rad Laboratories's all-time high stock price?
The highest closing price for BIO was $825.77 on September 2, 2021 (adjusted for stock splits). As of the October 16, 2026 close it traded 57.2% below that level.
What is the 52-week range of BIO stock?
Over the 52 weeks to October 16, 2026, BIO traded between an intraday low of $236.73 on May 13, 2026 and an intraday high of $396.23 on August 27, 2026.
Is BIO above its 200-day moving average?
Yes. On October 16, 2026 BIO closed at $353.70, 13.8% above its 200-day simple moving average of $310.86. The 50-day average was $372.70.
How has BIO stock performed compared with the S&P 500?
Including reinvested dividends, BIO returned +13.2% over the past year, compared with +16.8% for the S&P 500 (SPY). Over five years the figures were −51.0% and +83.0%.
Does Bio-Rad Laboratories pay a dividend?
Bio-Rad Laboratories has not paid a dividend in the past 12 months.
Has BIO stock ever split?
BIO has split its stock 5 times: 2:1 (March 18, 1980), 3:2 (August 1, 1985), 3:2 (June 11, 1986), 3:2 (June 3, 1996), 2:1 (March 8, 2002). Prices on this chart are adjusted for all splits.
How do I read the BIO chart?
Pick a time range above the chart and choose candlesticks, a line or an area chart. Moving averages, Bollinger Bands, volume, RSI and MACD can be switched on with the indicator buttons, and "Compare" plots BIO against the S&P 500, its sector or a competitor as a percentage change. Chart prices are adjusted for splits and dividends.