NASDAQ:BLGO BioLargo (BLGO) Stock Price, News & Analysis $0.17 0.00 (-0.41%) As of 03:48 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsHeadlinesSEC FilingsShort InterestTrendsBuy This Stock About BioLargo Stock (NASDAQ:BLGO) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get BioLargo alerts:Sign Up Key Stats Today's Range$0.17▼$0.1750-Day Range$0.17▼$0.2252-Week Range$0.16▼$0.32Volume82,213 shsAverage Volume314,300 shsMarket Capitalization$52.44 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview BioLargo, Inc. invents, develops, and commercializes various platform technologies. Its technologies solve challenging environmental problems comprising per - and polyfluoroalkyl substances (PFAS) water contamination, advanced water and wastewater treatment, industrial odor and volatile organic compounds control, air quality control, infection control, and myriad environmental remediation. The company provides full-service environmental engineering services. BioLargo, Inc. was incorporated in 1991 and is based in Westminster, California. Read More BioLargo Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks8th Percentile Overall ScoreBLGO MarketRank™: BioLargo scored higher than 8% of companies evaluated by MarketBeat, and ranked 197th out of 202 stocks in the construction sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's OpinionN/AAnalyst RatingN/A Consensus RatingThere is not enough analysis data for BioLargo. Earnings and Valuation0.0 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of BioLargo is -17.08, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of BioLargo is -17.08, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioBioLargo has a P/B Ratio of 17.08. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities. Short Interest5.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted0.01% of the outstanding shares of BioLargo have been sold short.Short Interest Ratio / Days to CoverBioLargo has a short interest ratio ("days to cover") of 0, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in BioLargo has recently decreased by 75.90%, indicating that investor sentiment is improving significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldBioLargo does not currently pay a dividend.Dividend GrowthBioLargo does not have a long track record of dividend growth. Sustainability and ESGN/AEnvironmental ScoreN/A Percentage of Shares Shorted0.01% of the outstanding shares of BioLargo have been sold short.Short Interest Ratio / Days to CoverBioLargo has a short interest ratio ("days to cover") of 0, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in BioLargo has recently decreased by 75.90%, indicating that investor sentiment is improving significantly. News and Social Media0.0 / 5News SentimentN/A News Coverage This WeekMarketBeat has tracked 1 news article for BioLargo this week, compared to 0 articles on an average week. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, BioLargo insiders have not sold or bought any company stock.Percentage Held by Insiders19.30% of the stock of BioLargo is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by InstitutionsOnly 0.04% of the stock of BioLargo is held by institutions.Read more about BioLargo's insider trading history. 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. Email Address BLGO Stock News HeadlinesBioLargo Highlights 2025 Progress and Future OutlookJuly 23, 2025 | tipranks.comBioLargo initiates alpha testing of Verralize’s portable PFAS test kitJuly 2, 2025 | finance.yahoo.comTrump set to Boost Social Security Checks by 400%?If you're collecting or planning to collect social security... You should see this presentation about President Trump's Executive Order #14196. Legendary investor Louis Navellier believes it could soon not only save Social Security from collapse... But BOOST benefits for millions of retirees by up to 400%. No wonder the financial times called this new initiative...August 6 at 2:00 AM | InvestorPlace (Ad)Independent Evaluation Confirms Breakthrough Performance of BioLargo’s Cellinity Battery Technology for Grid-Scale Energy StorageJune 18, 2025 | usatoday.comEarnings call transcript: BioLargo Q1 2025 revenue misses forecast, stock dipsMay 17, 2025 | investing.comBioLargo Inc (BLGO) Q1 2025 Earnings Call Highlights: Strategic Innovations Amid Financial ...May 16, 2025 | finance.yahoo.comBioLargo, Inc: BioLargo's PFAS Solution Provides Dramatic Long-Term Cost Savings Compared with Incumbent TechnologiesMay 5, 2025 | finanznachrichten.deEarnings call transcript: BioLargo Q1 2025 reveals strong revenue growthApril 2, 2025 | investing.comSee More Headlines BLGO Stock Analysis - Frequently Asked Questions How have BLGO shares performed this year? BioLargo's stock was trading at $0.19 at the start of the year. Since then, BLGO stock has decreased by 10.1% and is now trading at $0.1708. 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 Today8/06/2025Fiscal Year End12/31/2025Get 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)($0.01) 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 / Sales4.29 Cash FlowN/A Price / Cash FlowN/A Book Value$0.01 per share Price / Book17.08Miscellaneous Outstanding Shares307,025,000Free Float240,168,000Market Cap$52.44 million OptionableNot Optionable Beta0.05 Social Links Elon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free Report This page (NASDAQ:BLGO) was last updated on 8/6/2025 by MarketBeat.com Staff From Our PartnersGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. 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