BioLargo (BLGO) Stock Chart & Stock Price History $0.19 -0.01 (-3.47%) As of 12:33 PM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsHeadlinesSEC FilingsShort InterestTrendsBuy This Stock BioLargo Stock Price Performance The BioLargo (BLGO) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 33.32%, with a year-to-date return of 2.47%. In the past month, the stock has decreased 22.00%, reflecting recent market activity. As of the latest close, BioLargo traded at $0.20 with a market cap of $61.35 million and volume of 597,758 shares. Five years ago, the stock traded at $0.15, representing a 25.69% increase over that period. At the time, it had a market cap of $27.90 million and a volume of 296,824 shares. Receive BLGO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-11.50%1 Month Performance-22.00%3 Month Performance-21.96%Year-To-Date Performance+2.47%1 Year Performance-33.32%5 Year Performance+25.69% BLGO Stock Chart for Thursday, June, 12, 2025 BLGO Chart by TradingView BioLargo Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization06/11/2025$0.21$0.20-2.98%$0.21$0.19597,758 shs$61.35 million06/10/2025$0.21$0.21+1.41%$0.22$0.20938,111 shs$63.24 million06/09/2025$0.22$0.21-6.82%$0.22$0.21628,793 shs$62.35 million06/06/2025$0.20$0.22+7.47%$0.22$0.20506,529 shs$66.79 million06/05/2025$0.21$0.20-1.59%$0.21$0.20122,445 shs$62.15 million06/04/2025$0.21$0.21-0.34%$0.21$0.20348,503 shs$63.15 million06/03/2025$0.22$0.21-7.16%$0.23$0.20320,257 shs$63.36 million06/02/2025$0.21$0.22+8.60%$0.22$0.20112,779 shs$68.25 million05/30/2025$0.21$0.21+0.98%$0.21$0.20117,598 shs$62.71 million05/29/2025$0.20$0.21+3.85%$0.22$0.19531,729 shs$62.11 million Get the Latest News and Ratings for BLGO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. 05/28/2025$0.21$0.20-7.93%$0.21$0.19688,250 shs$59.80 million05/27/2025$0.22$0.21-1.61%$0.22$0.21362,767 shs$64.95 million05/26/2025$0.22$0.22$0.23$0.21330,453 shs$66.01 million05/23/2025$0.22$0.22-0.73%$0.23$0.21330,453 shs$66.01 million05/22/2025$0.21$0.22+4.97%$0.22$0.19811,292 shs$66.39 million05/21/2025$0.21$0.21-2.47%$0.21$0.20520,278 shs$63.25 million05/20/2025$0.21$0.21+1.18%$0.21$0.2075,429 shs$64.85 million05/19/2025$0.21$0.21-1.40%$0.21$0.20243,091 shs$64.09 million05/16/2025$0.24$0.21-10.42%$0.23$0.21687,274 shs$64.89 million05/15/2025$0.24$0.24-1.68%$0.24$0.23369,924 shs$72.43 million05/14/2025$0.25$0.24-2.01%$0.26$0.23204,857 shs$73.67 million05/13/2025$0.25$0.25-0.24%$0.26$0.23613,209 shs$75.18 million05/12/2025$0.24$0.25+4.65%$0.25$0.22522,414 shs$75.28 million Related Companies ARQ Stock Chart ZTEK Stock Chart VGAS Stock Chart TSE Stock Chart AMTX Stock Chart LODE Stock Chart LOOP Stock Chart ALTO Stock Chart LNZA Stock Chart ORGN Stock Chart Receive BLGO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. 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