BIOLARGO INC (BLGO)
BLGO moved a median of 0.00% 30 minutes after news, and -0.05% by the close. How BLGO actually reacts to news — the realized, point-in-time move the market made, measured across 210 labeled events over the last three years with zero look-ahead.
BLGO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 33% | 184 |
| 30-min | 0.00% | 48% | 202 |
| 60-min | -0.03% | 43% | 207 |
| to close | -0.05% | 44% | 208 |
| Middle 50% of BLGO reactions | -1.31% to +1.87% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 210 |
Half of all BIOLARGO INC news events land between -1.31% and +1.87% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when BLGO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to BLGO's baseline. Nothing else.
Recent BLGO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| BioLargo Subsidiary Clyra Medical to Exhibit at SAWC Fall 2026 in Las Vegas | Press release | ACCESS Newswire | +0.00% | +2.17% | |
| Form 8-K/A BIOLARGO, INC. For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | -12.07% | -7.07% | |
| Form 8-K BIOLARGO, INC. For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | — | -0.05% | |
| BioLargo Canada and Tu Nipi Form Indigenous-Led Partnership to Treat Oil Sands Process Water and More | Press release | ACCESS Newswire | +8.35% | +7.42% | |
| BioLargo Townhall and Q2 2026 Earnings Results Webcast and Conference Call on Thursday, September 10th, 2026 - 4:00 PM Eastern Time | Press release | ACCESS Newswire | +0.00% | +4.84% | |
| BioLargo's Subsidiary Clyra Medical Adds Third Distribution Channel Accelerating Commercial Rollout of ViaClyr Wound Irrigation Solution | Press release | ACCESS Newswire | -2.65% | -4.76% | |
| BioLargo, Inc. to Present at the Inaugural Nasdaq / LD Micro Summit on September 9, 2026 | Press release | ACCESS Newswire | +0.00% | -6.50% | |
| BioLargo to Participate in Gabelli Funds' 4th Annual PFAS Symposium in New York | Press release | ACCESS Newswire | +0.00% | +0.00% | |
| BioLargo Reports Second Quarter 2026 Results; Revenue Up 12% Sequentially, Gross Margin Expands to 54% | Press release | ACCESS Newswire | +1.35% | -3.47% | |
| Form 10-Q BIOLARGO, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.35% | -3.47% | |
| BioLargo's Lake Stockholm AEC Installation passes six months of PFAS remediation Topping Two Million Gallons | Press release | ACCESS Newswire | +7.02% | +2.44% | |
| BioLargo Joins New Jersey Institute of Technology-Led PFAS Consortium; President Tonya Chandler Appointed to Board of Directors | Press release | ACCESS Newswire | +0.24% | -0.89% | |
| BioLargo Equipment Solutions & Technologies' "PFAS Lady" to Teach PFAS 101 at 41st Annual Tri-State Seminar | Press release | ACCESS Newswire | +0.00% | +1.35% | |
| BioLargo PFAS Treatment Technology Featured in The Disruptive Quarterly | Press release | ACCESS Newswire | +7.11% | +1.90% | |
| BioLargo Relaunching CupriDyne(R)-Based Consumer Products - Back by Popular Demand and Generated More than $125 Million in Pet-Care Sales | Press release | ACCESS Newswire | +3.46% | +1.46% | |
| BioLargo Engineering Unit Awarded $1.4 Million in U.S. Air Force Environmental Contract Renewals | Press release | ACCESS Newswire | -2.44% | -3.83% | |
| Form 10-Q BIOLARGO, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -1.33% | -10.98% | |
| Form 8-K BIOLARGO, INC. For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +0.51% | -0.58% | |
| BioLargo Subsidiary Clyra Medical Signs Exclusive Distribution Agreement with Al- Hikma FZCO for ViaCLYR(TM) Across the Middle East, North Africa, and Adjacent Markets | Press release | ACCESS Newswire | +1.34% | -0.49% | |
| BioLargo Signs Memorandum of Understanding with Aquatech to Accelerate Commercialization of PFAS Treatment Technology | Press release | ACCESS Newswire | +0.00% | +2.53% | |
| BioLargo to Participate in a Town Hall Meeting Hosted by the BioLargo Shareholder Community on Discord on May 5, 2026 | Press release | ACCESS Newswire | +0.00% | +2.53% | |
| Form 8-K BIOLARGO, INC. For: May 04 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +2.53% | |
| Form 10-K/A BIOLARGO, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.07% | -0.20% | |
| BioLargo Engineering, Science & Technologies Awarded $1.2 Million Contract to Design Pilot-Scale Minerals Processing Facility for Resource Recovery | Press release | ACCESS Newswire | -0.90% | +2.84% | |
| Form EFFECT BIOLARGO, INC. | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | -1.29% | |
| Form S-1 BIOLARGO, INC. | SEC filing · Form S-1 | SEC EDGAR | +0.00% | +1.50% | |
| BioLargo CEO Dennis Calvert to Present Global Environmental Leadership Award to Robert Bilott at Nassau County PFAS Forum | Press release | ACCESS Newswire | — | -3.24% | |
| Form 8-K BIOLARGO, INC. For: Mar 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.47% | |
| BioLargo Reports Annual 2025 Operating and Financial Results | Press release | ACCESS Newswire | +2.51% | -3.47% | |
| Form 8-K BIOLARGO, INC. For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | — | +0.00% | |
| BioLargo Q4 2025 and Year End Earnings Results Webcast and Conference Call on Thursday, March 5th, 2026 - 12:00 PM Eastern Time | Press release | ACCESS Newswire | — | +0.88% | |
| Form 10-K BIOLARGO, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +2.57% | -0.99% | |
| BioLargo Subsidiary Clyra Medical Highlights Key Opinion Leader Presentation of Exceptional ViaCLYR(TM) Clinical Results at Leading Wound Care Symposium | Press release | ACCESS Newswire | +1.49% | +3.77% | |
| BioLargo Subsidiary Clyra Medical Technologies Secures First Stocking Order with Advanced Solution for ViaCLYR(TM) Wound Irrigation Solution | Press release | ACCESS Newswire | +4.92% | +5.29% | |
| BioLargo Installs AEC PFAS Treatment System at Lake Stockholm, New Jersey | Press release | ACCESS Newswire | -0.15% | -3.86% | |
| BioLargo to Present at Sidoti's Micro-Cap Virtual Conference on Thursday January 22nd at 1pm EST | Press release | ACCESS Newswire | -1.43% | +3.51% | |
| BioLargo Reflects on 2025 Progress and Positions for the Next Phase of Global Infrastructure, Environmental, and Medical Innovation | Press release | ACCESS Newswire | +0.00% | -0.62% | |
| BioLargo Subsidiary BEST Featured in Chemical Engineering Magazine for PFAS Breakthrough | Press release | ACCESS Newswire | -2.58% | +1.05% | |
| Form 8-K BIOLARGO, INC. For: Nov 14 | SEC filing · Form 8-K | SEC EDGAR | -1.84% | -2.94% | |
| BioLargo Reports Q3 2025 Operating and Financial Results | Press release | ACCESS Newswire | +1.59% | -0.55% | |
| Form 10-Q BIOLARGO, INC. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.59% | -0.55% | |
| Form 8-K BIOLARGO, INC. For: Nov 14 | SEC filing · Form 8-K | SEC EDGAR | +1.59% | -0.55% | |
| BioLargo Q3 2025 Earnings Results Webcast and Conference Call on Friday, November 14th, 2025 - 4:30 PM Eastern Time | Press release | ACCESS Newswire | +8.51% | — | |
| BioLargo Subsidiary Clyra Medical Technologies Forms Strategic Alliance with Advanced Solution to Launch ViaCLYR(TM) Wound Irrigation Solution Nationwide | Press release | ACCESS Newswire | +8.51% | — | |
| BioLargo Files Federal Lawsuit Against Pooph Inc. | Press release | ACCESS Newswire | +0.00% | +0.20% | |
| BioLargo Cuts AEC PFAS Treatment Energy Use by >90%, Unlocking Commercial-Scale Water Solutions with Unmatched Total Life Cycle Cost Savings | Press release | ACCESS Newswire | +0.00% | +0.96% | |
| BioLargo Presentation Deck at LD Micro Event Available Online | Press release | ACCESS Newswire | +0.06% | +2.48% | |
| Form 8-K BIOLARGO, INC. For: Oct 20 | SEC filing · Form 8-K | SEC EDGAR | +0.06% | +2.48% | |
| Biolargo Invites You to the Sustain SoCal 16th Annual Energy Event - A Premier Gathering for Clean Energy Innovation | Press release | ACCESS Newswire | -2.19% | -1.44% | |
| BioLargo to Present Its Cellinity Battery Technology at LD Micro Main Event XIX in San Diego on Monday, October 20, at 2:00 p.m. PT | Press release | ACCESS Newswire | -2.19% | -1.44% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the BLGO section they belong to.
Where else BLGO is measured.
BLGO earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Orion S.A. Common Shares (OEC) | 214 | -0.02% | 45% |
| American Vanguard Corporation ($0.10 Par Value) (AVD) | 213 | +0.21% | 53% |
| Mercer International Inc. (MERC) | 210 | -0.14% | 45% |
| Voyageur Minerals Ltd (VM_CDNX) | 208 | 0.00% | 6% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Basic Materials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is BIOLARGO INC's median reaction calculated?
Every labeled BLGO news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 210 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 48% of BLGO's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does BLGO's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.