BioLargo (BLGO) Stock Price, News & Analysis

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.

Key Stats

• Today's Range: $0.17 to $0.18
• 50-Day Range: $0.17 to $0.21
• 52-Week Range: $0.16 to $0.32
• Volume: 345,204 shs
• Average Volume: 314,855 shs
• Market Capitalization: $54.51 million
• P/E Ratio: N/A
• Dividend Yield: N/A
• Price Target: N/A
• Consensus Rating: N/A

BioLargo Stock Analysis - MarketRank™

BioLargo scored higher than 6% of companies evaluated by MarketBeat, and ranked 102nd out of 105 stocks in the construction sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

Analyst's Opinion

• Score: N/A
• Analyst Rating: N/A

Consensus Rating

There is not enough analysis data for BioLargo.

Earnings and Valuation

• Score: 0.0 / 5
• Proj. Earnings Growth: N/A

Price to Earnings Ratio vs. the Market

The P/E ratio of BioLargo is -17.70, 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. Sector

The P/E ratio of BioLargo is -17.70, 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 Ratio

BioLargo has a P/B Ratio of 17.70. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.

Short Interest

• Score: 3.0 / 5
• Short Interest Level: Healthy

Percentage of Shares Shorted

0.05% of the float of BioLargo has been sold short.

Short Interest Ratio / Days to Cover

BioLargo has a short interest ratio ("days to cover") of 0.1, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Short interest in BioLargo has recently increased by 441.88%, indicating that investor sentiment is decreasing significantly.

Dividend

• Score: 0.0 / 5
• Dividend Strength: N/A

Dividend Yield

BioLargo does not currently pay a dividend.

Dividend Growth

BioLargo does not have a long track record of dividend growth.

Sustainability and ESG

• Score: N/A
• Environmental Score: N/A

Percentage of Shares Shorted

0.05% of the float of BioLargo has been sold short.

Short Interest Ratio / Days to Cover

BioLargo has a short interest ratio ("days to cover") of 0.1, which is generally considered an acceptable ratio of short interest to trading volume.

Change versus previous month

Short interest in BioLargo has recently increased by 441.88%, indicating that investor sentiment is decreasing significantly.

News and Social Media

• Score: 1.7 / 5
• News Sentiment: 0.09

News Sentiment

BioLargo has a news sentiment score of 0.09. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.86 average news sentiment score of Construction companies.

News Coverage This Week

MarketBeat has tracked 4 news articles for BioLargo this week, compared to 0 articles on an average week.

Company Ownership

• Score: 0.8 / 5
• Insider Trading: N/A

Insider Buying vs. Insider Selling

In the past three months, BioLargo insiders have not sold or bought any company stock.

Percentage Held by Insiders

19.30% 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 Institutions

Only 0.04% of the stock of BioLargo is held by institutions.

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 shares have decreased by 6.8% and is now trading at $0.1770.

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

• Today: 8/16/2025
• Fiscal Year End: 12/31/2025

Industry, Sector and Symbol

• Stock Exchange: NASDAQ
• Sector: Construction
• Industry: Chemicals & allied products
• Sub-Industry: Chemicals
• Current Symbol: NASDAQ:BLGO
• CIK: 880242
• Web: www.biolargo.com
• Phone: (888) 400-2863
• Fax: 949-625-9819
• Employees: 30
• Year Founded: 1989

Profitability

• EPS (Trailing Twelve Months): ($0.01)
• Trailing P/E Ratio: N/A
• Forward P/E Ratio: N/A
• P/E Growth: N/A
• Net 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 Ratio: 0.03
• Current Ratio: 2.31
• Quick Ratio: 2.24

Sales & Book Value

• Annual Sales: $12.23 million
• Price / Sales: 4.46
• Cash Flow: N/A
• Price / Cash Flow: N/A
• Book Value: $0.01 per share
• Price / Book: 17.70

Miscellaneous

• Outstanding Shares: 307,988,000
• Free Float: 240,168,000
• Market Cap: $54.51 million
• Optionable: Not Optionable
• Beta: 0.05