Brazil Potash Corp. Common Shares (GRO)
GRO moved a median of -0.25% 30 minutes after news, and -1.14% by the close. How GRO actually reacts to news — the realized, point-in-time move the market made, measured across 56 labeled events over the last three years with zero look-ahead.
GRO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.43% | 38% | 56 |
| 30-min | -0.25% | 46% | 56 |
| 60-min | -0.47% | 41% | 56 |
| to close | -1.14% | 38% | 56 |
| Middle 50% of GRO reactions | -2.70% to +2.25% |
|---|---|
| Median reaction (30-min) | -0.25% |
| Measured reactions | 56 |
Half of all Brazil Potash Corp. Common Shares news events land between -2.70% and +2.25% 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 GRO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GRO's baseline. Nothing else.
Recent GRO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Brazil Potash AI-Powered X-Ray Transmission Sorting Testing Shows Potential for Higher Production and Longer Mine Life | Press release | GlobeNewswire | +3.23% | +5.07% | |
| Brazil Potash Reduces Upfront Capex with 28-Year Construction & Backup Power Contract | Press release | GlobeNewswire | +1.26% | +0.84% | |
| Brazil’s Government Supports Potash Construction Financing | Press release | GlobeNewswire | -0.21% | +1.25% | |
| Brazil's Supreme Federal Court Issues Favorable Decision for Brazil Potash | Press release | GlobeNewswire | -1.79% | -1.98% | |
| Brazil Senate Passes Law to Incentivize New Domestic Fertilizer Production With Several Potential Construction Funding Benefits for Brazil Potash | Press release | GlobeNewswire | +3.72% | -1.38% | |
| Brazil’s Court of Appeal Perserves Rulings Favourable to the Autazes Potash Project, Blocks Referral of Appeals to Superior Courts | Press release | GlobeNewswire | -0.44% | -2.19% | |
| Brazil Potash Provides Update on Autazes Project Regarding Brazilian Court Filing | Press release | GlobeNewswire | +0.27% | -0.90% | |
| Brazil Potash Awards Front End Engineering Design (FEED) Contract For Mine Shafts and Underground Development to WSP UK Ltd., with Redpath Deilmann Mining Inc. as Subconsultants, Completing Full-Project FEED Coverage at Autazes | Press release | GlobeNewswire | +0.46% | +3.64% | |
| Brazil Potash Signs MOU With Gera Center for 28-Year BOOT Power Contract, Delivering ~$10 Million in Net Savings and Eliminating ~$33 Million in Upfront Construction Capital | Press release | GlobeNewswire | -2.22% | -7.41% | |
| Brazil Potash Awards Front-End Engineering Design (FEED) Contract for Surface Facilities and Infrastructure to Wood and Promon Engenharia, Advancing Bankability of the Autazes Project | Press release | GlobeNewswire | -3.58% | -3.58% | |
| Brazil Potash Announces Closing of $63.3 Million Public Offering of Common Shares and Pre-Funded Warrants, Including Full Exercise of Underwriters’ Option to Purchase Additional Shares | Press release | GlobeNewswire | -0.56% | +3.72% | |
| Brazil Potash Announces Pricing of $55 Million Public Offering of Common Shares and Pre-Funded Warrants | Press release | GlobeNewswire | +5.13% | -0.37% | |
| Brazil Potash Announces Proposed Public Offering of Common Shares and Pre-Funded Warrants | Press release | GlobeNewswire | +5.13% | -0.37% | |
| Brazil Potash Formalizes Cooperation Agreement With Mura Indigenous Council for Sustainable Territorial Development in Autazes | Press release | GlobeNewswire | +2.50% | +15.12% | |
| Brazil Potash Invited to Speak on the Global Food Security Panel at the Inter-American Development Bank’s (IDB) Annual Meeting of the Board of Governors | Press release | GlobeNewswire | +1.75% | +7.02% | |
| Brazil Potash Reports Significant Site Progress Including Federal Water Rights Approval, Indigenous Community Partnership Advancement, and Construction Financing Initiatives | Press release | GlobeNewswire | -1.79% | -7.50% | |
| Brazil Potash Estimates Up to ~$94 Million in Potential Brazil Government Tax Savings Following SUFRAMA Registration | Press release | GlobeNewswire | -1.67% | -4.76% | |
| Brazil Potash Achieved Major 2025 Milestones, Positions for Construction Advancement in 2026 | Press release | GlobeNewswire | +0.60% | -4.71% | |
| Brazil Potash Initiates Artificial Intelligence Powered X-Ray Ore Sorting Trial as Technology Shows High Potential to Substantially Reduce Costs | Press release | GlobeNewswire | +1.24% | -0.41% | |
| Brazil Potash Appoints Sergio Leite as President of Potássio do Brasil | Press release | GlobeNewswire | +0.00% | -2.55% | |
| Brazil Potash Mandates BTIG to Lead Project-Level Equity Financing for Construction, with a Goal to Minimize Dilution to Shareholders | Press release | GlobeNewswire | -1.81% | -9.27% | |
| Global Potash Market Size Expected to Reach $93.5 Billion In 2032 as the Potash Industry is Experiencing Robust Growth | Press release | GlobeNewswire | +3.02% | -1.51% | |
| Brazil Potash Presells 91% of Future Production, Catalyzing Construction Financing Phase | Press release | GlobeNewswire | +3.99% | +4.56% | |
| Brazil Potash Announces $28 Million Private Placement | Press release | GlobeNewswire | -0.42% | -2.92% | |
| Brazil Potash Leadership Invited to Annual Mura Indigenous Cultural Festival | Press release | GlobeNewswire | +0.70% | +1.13% | |
| Brazil Potash Executes Definitive Offtake Agreement With Keytrade Fertilizantes Brasil for ~900,000 Tons of Fertilizer | Press release | GlobeNewswire | -4.31% | +3.78% | |
| Brazil Potash to Host Conference Call to Discuss Signing of ~$220M Memorandum of Understanding With Fictor Energia | Press release | GlobeNewswire | -7.39% | -5.88% | |
| Brazil Potash Signs Memorandum of Understanding for ~$200m Power Line Construction and $20m Investment With Fictor Energia | Press release | GlobeNewswire | -7.39% | -5.88% | |
| Brazil Potash Announces Organizational Change at Potássio do Brasil | Press release | GlobeNewswire | -1.38% | -6.63% | |
| Brazil Potash Year to Date Summary: Company Achieves Milestones, Advancing Strategic Autazes Project Further Towards Construction | Press release | GlobeNewswire | +0.00% | +0.60% | |
| Brazil Potash Announces Launch of Brazilian Depositary Receipts (BDRs) on B3 Exchange | Press release | GlobeNewswire | +0.00% | +34.27% | |
| Brazil Potash Announces Completion of Site Preparation Work at Future Port Terminal for Autazes Project | Press release | GlobeNewswire | +1.49% | -0.76% | |
| Brazil Potash Announces Agreement for up to $75 Million Equity Line of Credit From Alumni Capital | Press release | GlobeNewswire | +0.05% | +0.00% | |
| Brazil Potash Announces Participation in Upcoming Investor Conferences and Going Concern Qualification | Press release | GlobeNewswire | +0.00% | -3.54% | |
| Brazil Potash Expands Advisory Board With Appointment of Marcelo Lessa, Former Executive of IFC/World Bank and Bunge Ltda. | Press release | GlobeNewswire | -0.76% | -11.07% | |
| Brazil Potash Advances Autazes Project Construction With Signing of Fauna Rescue Contract | Press release | GlobeNewswire | -2.40% | +0.80% | |
| Brazil Potash Announces Filing of Annual Report on Form 20-F For Fiscal Year 2024 and Upcoming Business Update Call | Press release | GlobeNewswire | -1.98% | +3.03% | |
| Brazil Potash Announces Participation In Diversibram 2025 | Press release | GlobeNewswire | -2.41% | -8.13% | |
| Brazil Potash Awards Vegetation Management Contract for Autazes Project Site Preparation | Press release | GlobeNewswire | +0.00% | +12.54% | |
| Brazil Potash Announces Site Visit by Federal and State Government Officials and Participation in Amazonas Oil, Gas & Energy Conference | Press release | GlobeNewswire | -1.11% | +24.54% | |
| Brazil Potash to Present at 37th Annual Roth Conference March 17, 2025 | Press release | GlobeNewswire | -1.67% | +1.25% | |
| Brazil Potash Announces Participation in Key Mining & Agriculture Investor & Industry Conferences | Press release | GlobeNewswire | +0.00% | -8.59% | |
| Brazil Potash Advances Autazes Project Construction With Approval To Perform Fauna Rescue and Vegetation Suppression | Press release | GlobeNewswire | -1.53% | -1.53% | |
| Brazil Potash Schedules Business Update Call | Press release | GlobeNewswire | -2.56% | -4.62% | |
| Brazil Potash Launches Archaeological Monitoring, Rescue Program, and Heritage Education for the Autazes Potash Project | Press release | GlobeNewswire | -3.76% | -3.70% | |
| Brazil Potash Executive Chairman Mayo Schmidt and Leadership Team Met With Amazonas State Governor, Wilson Lima, Mayor Thomé Neto, and the Mura Indigenous Council to Discuss Advancement of Autazes Potash Project | Press release | GlobeNewswire | +2.38% | -12.84% | |
| Brazil Potash Signs Memorandum of Understanding with Keytrade AG for Up to One Million Tons of Potash Offtake Per Year | Press release | GlobeNewswire | -0.45% | +6.24% | |
| Presenting on the Emerging Growth Conference 78 Day 1 on January 15 Register Now | Press release | GlobeNewswire | -0.56% | -15.21% | |
| Brazil Potash Subsidiary Potássio do Brasil, Signs Preliminary Agreement with Mura Indigenous People for Autazes Potash Project | Press release | GlobeNewswire | -1.15% | -1.91% | |
| Brazil Potash to Present on the Emerging Growth Conference | Press release | GlobeNewswire | -0.37% | -5.85% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GRO section they belong to.
Where else GRO is measured.
GRO earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Brazil Potash Corp. Common Shares's median reaction calculated?
Every labeled GRO 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 56 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. 46% of GRO'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 GRO'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.