NASDAQ:BLGO BioLargo (BLGO) Stock Price, News & Analysis $0.11 -0.01 (-8.08%) As of 03:58 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsHeadlinesSEC FilingsTrendsBuy This Stock About BioLargo Stock (NASDAQ:BLGO) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get BioLargo alerts:Sign Up Key Stats Today's Range$0.11▼$0.1250-Day Range$0.11▼$0.1752-Week Range$0.11▼$0.23Volume1.32 million shsAverage Volume284,542 shsMarket Capitalization$35.26 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview BioLargo, Inc. (NASDAQ: BLGO) is a technology-driven environmental solutions company focused on developing and commercializing proprietary platforms for water treatment, odor control and air purification. The company’s core technology, the Advanced Oxidation System (AOS), uses electrochemical processes to remove contaminants from industrial and municipal wastewater with reduced chemical usage and lower energy requirements compared to conventional treatment methods. In addition to its AOS platform, BioLargo offers CupriDyne® Clean, a patented iodine-based solution designed for odor neutralization and surface disinfection in commercial, industrial and agricultural settings. This product appeals to customers in food processing, animal husbandry, waste management and hospitality, where effective odor control and antimicrobial activity are critical for regulatory compliance and operational efficiency. BioLargo operates through specialized subsidiaries, including BioLargo Water and Odor-No-More, to tailor its technologies and services across North America and selected international markets. The company collaborates with engineering firms, technology partners and government agencies to conduct pilot projects and scale its solutions for applications such as refinery wastewater polishing, landfill odor abatement and municipal water reuse initiatives. Headquartered in Irvine, California, BioLargo is led by President and Chief Executive Officer Dennis P. Calvert, who has overseen its transition from a research-focused organization to a commercial-stage enterprise. The company’s management team brings expertise in engineering, regulatory affairs and business development, positioning BioLargo to advance its product pipeline and expand its presence in the growing environmental technology sector.AI Generated. May Contain Errors. Read More Receive BLGO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. 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BLGO Stock News HeadlinesCritical Comparison: Global Partner Acquisition Corp II (NASDAQ:GPAC) versus BioLargo (NASDAQ:BLGO)May 12, 2026 | americanbankingnews.comContrasting Global Partner Acquisition Corp II (NASDAQ:GPAC) and BioLargo (NASDAQ:BLGO)May 12, 2026 | americanbankingnews.comALERT: Drop these 5 stocks before the market opens tomorrow!The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings research points to the first half of 2026 as a particularly rough stretch for certain holdings. Some of America's most popular stocks could take serious damage as a radical market shift plays out. Analysts at Weiss Ratings have identified five names you may want to remove from your portfolio before this unfolds. If any of these are in your portfolio, now is the time to review your positions.May 19 at 1:00 AM | Weiss Ratings (Ad)Reviewing Global Partner Acquisition Corp II (NASDAQ:GPAC) & BioLargo (NASDAQ:BLGO)May 11, 2026 | americanbankingnews.comBioLargo, Inc. (BLGO) Shareholder/Analyst Call TranscriptMay 6, 2026 | seekingalpha.comBioLargo, Inc: BioLargo Subsidiary Clyra Medical Signs Exclusive Distribution Agreement with Al- Hikma FZCO for ViaCLYR Across the Middle East, North Africa, and Adjacent MarketsMay 5, 2026 | finanznachrichten.deBioLargo Schedules CEO Town Hall to Engage ShareholdersMay 4, 2026 | tipranks.comBioLargo, Inc: BioLargo Engineering, Science & Technologies Awarded $1.2 Million Contract to Design Pilot-Scale Minerals Processing Facility for Resource RecoveryApril 20, 2026 | finanznachrichten.deSee More Headlines BLGO Stock Analysis - Frequently Asked Questions How have BLGO shares performed this year? BioLargo's stock was trading at $0.1831 on January 1st, 2026. Since then, BLGO shares have decreased by 39.8% and is now trading at $0.1103. How do I buy shares of BioLargo? Shares of BLGO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of BioLargo own? Based on aggregate information from My MarketBeat watchlists, some other companies that BioLargo investors own include Hydrofarm Holdings Group (HYFM), Avino Silver & Gold Mines (ASM), Meta Platforms (META), Micron Technology (MU), Petroleo Brasileiro S.A.- Petrobras (PBR), Clean Energy Fuels (CLNE) and FuelCell Energy (FCEL). Company Calendar Today5/19/2026Fiscal Year End12/31/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorConstruction Industry Chemicals & allied products Sub-IndustryChemicals Current SymbolNASDAQ:BLGO CIK880242 Webwww.biolargo.com Phone(888) 400-2863Fax949-625-9819Employees30Year Founded1989Profitability EPS (Trailing Twelve Months)($0.04) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$3.50 million Net Margins-11.45% Pretax Margin-19.65% Return on Equity-39.90% Return on Assets-22.06% Debt Debt-to-Equity Ratio0.03 Current Ratio2.31 Quick Ratio2.24 Sales & Book Value Annual Sales$12.23 million Price / Sales2.88 Cash FlowN/A Price / Cash FlowN/A Book Value$0.01 per share Price / Book11.03Miscellaneous Outstanding Shares319,712,000Free Float240,168,000Market Cap$35.26 million OptionableNot Optionable Beta-0.09 Social Links Don't wait for the SpaceX IPOThe space race is growing fast, and you don’t have to wait for SpaceX to go public to invest. This report shows seven space stocks you can buy today that may grow as rockets, satellites, defense, space internet, and new space technology become more important.Get This Free Report This page (NASDAQ:BLGO) was last updated on 5/19/2026 by MarketBeat.com Staff. 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