Alcoa Corporation (AA)
How AA actually reacts to news — the realized, point-in-time move the market made, measured across 366 labeled events over the last three years with zero look-ahead.
AA’s median reaction, across the day.
Half of all Alcoa Corporation news events land between -1.18% and +0.89% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when AA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to AA’s baseline. Nothing else.
Get “How AA reacts to news” as a PDF.
A free one-page summary: AA’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent AA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Alcoa Corporation Declares Quarterly Cash Dividend | Press release | Business Wire | -0.22% | +0.22% | |
| Form 10-Q Alcoa Corp For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.22% | +0.22% | |
| Alcoa Corporation Reports Second Quarter 2026 Results | Press release | Business Wire | -2.82% | -5.48% | |
| Form 8-K Alcoa Corp For: Jul 16 | SEC filing · Form 8-K | SEC EDGAR | -2.82% | -5.48% | |
| Australia, Japan, the United States and Alcoa Announce Final Investment Decision for Gallium Project in Western Australia | Press release | Business Wire | -1.22% | -1.30% | |
| Form 8-K Alcoa Corp For: Jun 30 | SEC filing · Form 8-K | SEC EDGAR | +2.44% | +2.13% | |
| Form 8-K Alcoa Corp For: Jun 30 | SEC filing · Form 8-K | SEC EDGAR | -3.13% | -2.10% | |
| Alcoa Announces Strategic Acquisition of South32’s Bauxite, Alumina, and Aluminum Assets for $4.1 billion | Press release | Business Wire | -3.13% | -2.10% | |
| Alcoa Schedules Second Quarter 2026 Earnings Release and Conference Call | Press release | Business Wire | -1.15% | -1.01% | |
| Alcoa Announces Ratification of Labor Agreement at U.S. Smelters | Press release | Business Wire | -2.58% | -3.21% | |
| Form 11-K Alcoa Corp For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.04% | +1.69% | |
| Form SD Alcoa Corp | SEC filing · Form SD | SEC EDGAR | +0.49% | +2.37% | |
| Alcoa to Participate in Wells Fargo Industrials and Materials Conference 2026 | Press release | Business Wire | -0.81% | +1.26% | |
| Alcoa Corporation Announces $65 Million Capital Investment in Mosjøen | Press release | Business Wire | -0.72% | +5.31% | |
| Form 8-K Alcoa Corp For: May 06 | SEC filing · Form 8-K | SEC EDGAR | -0.72% | +5.31% | |
| Alcoa Corporation Declares Quarterly Cash Dividend | Press release | Business Wire | -0.31% | -2.87% | |
| Form S-8 Alcoa Corp | SEC filing · Form S-8 | SEC EDGAR | -0.51% | -0.88% | |
| Form 8-K Alcoa Corp For: May 04 | SEC filing · Form 8-K | SEC EDGAR | +0.10% | -0.69% | |
| Form 10-Q Alcoa Corp For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.72% | -0.70% | |
| Alcoa to Participate in Bank of America Global Metals, Mining and Steel Conference 2026 | Press release | Business Wire | -0.68% | -1.95% | |
| Alcoa Corporation Reports First Quarter 2026 Results | Press release | Business Wire | -0.91% | +2.53% | |
| Form 8-K Alcoa Corp For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | -0.91% | +2.53% | |
| Alcoa Corporation Announces Intention to Redeem in Full $219 million of Outstanding 6.125% Notes due 2028 | Press release | Business Wire | -0.72% | -2.00% | |
| Form 8-K Alcoa Corp For: Apr 14 | SEC filing · Form 8-K | SEC EDGAR | -0.72% | -2.00% | |
| Form DEFA14A Alcoa Corp | SEC filing · Form DEFA14A | SEC EDGAR | +0.55% | +0.95% | |
| Form ARS Alcoa Corp For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.47% | -2.52% | |
| Form DEF 14A Alcoa Corp For: May 06 | SEC filing · Form DEF | SEC EDGAR | +0.47% | -2.52% | |
| Form DEFA14A Alcoa Corp | SEC filing · Form DEFA14A | SEC EDGAR | +0.47% | -2.52% | |
| Alcoa Schedules First Quarter 2026 Earnings Release and Conference Call | Press release | Business Wire | +1.72% | +3.19% | |
| Alcoa to Participate in J.P. Morgan 2026 Industrials Conference | Press release | Business Wire | +0.81% | -0.37% | |
| Alcoa Names Chief External Affairs Officer | Press release | Business Wire | +0.28% | -0.96% | |
| Alcoa Corporation Declares Quarterly Cash Dividend | Press release | Business Wire | +1.21% | -0.91% | |
| Form 10-K Alcoa Corp For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.21% | -0.91% | |
| Alcoa Furthers Approvals Modernization with Australian Government | Press release | Business Wire | -0.58% | +2.03% | |
| Alcoa to Participate in BMO 2026 Global Metals, Mining & Critical Minerals Conference | Press release | Business Wire | -1.35% | -0.35% | |
| Alcoa Corporation Reports Fourth Quarter and Full Year 2025 Results | Press release | Business Wire | -2.02% | +2.34% | |
| Form 8-K Alcoa Corp For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | -2.02% | +2.34% | |
| Alcoa Schedules Fourth Quarter and Full Year 2025 Earnings Release and Conference Call | Press release | Business Wire | +2.16% | +5.32% | |
| Alcoa Corporation Announces Intention to Redeem in Full $141 Million of Outstanding 5.500% Notes Due 2027 | Press release | Business Wire | +1.16% | +4.97% | |
| Form 8-K Alcoa Corp For: Nov 25 | SEC filing · Form 8-K | SEC EDGAR | +1.16% | +4.97% | |
| Alcoa to Participate in Citi’s 2025 Basic Materials Conference | Press release | Business Wire | +1.26% | +0.55% | |
| Alcoa, Ball and Unilever Partner to Launch the First Use of ELYSIS® Carbon-Free Smelting Technology in Consumer Personal and Home Care Packaging | Press release | Business Wire | +2.43% | +1.89% | |
| Form 10-Q Alcoa Corp For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.03% | -2.14% | |
| Alcoa Corporation Declares Quarterly Cash Dividend | Press release | Business Wire | +2.25% | +5.46% | |
| Alcoa Corporation Reports Third Quarter 2025 Results | Press release | Business Wire | +2.25% | +5.46% | |
| Alcoa Corporation Secures Long-Term Energy Contract and Announces $60M Capital Investment in U.S. Smelter | Press release | Business Wire | +0.08% | -4.42% | |
| Form 8-K Alcoa Corp For: Oct 22 | SEC filing · Form 8-K | SEC EDGAR | +2.25% | +5.46% | |
| Alcoa Foundation Supports Pittsburgh Education Programs, Contributing to Local STEM/STEAM Learning | Press release | Business Wire | -1.87% | -1.92% | |
| Governments Announce Support for Alcoa’s Gallium Critical Mineral Development Project in Western Australia | Press release | Business Wire | -1.87% | -1.92% | |
| Alcoa Corporation to Host Investor Day on October 30, 2025 | Press release | Business Wire | -0.55% | -0.77% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AA section they belong to.
More of the dataset.
AA earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Alcoa Corporation's median reaction calculated?
Every labeled AA 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 366 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. 42% of AA'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 2026-08-13.
Does AA'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.