Alcoa Corporation (AA)
AA moved a median of -0.24% 30 minutes after news, and -0.06% by the close. How AA actually reacts to news — the realized, point-in-time move the market made, measured across 386 labeled events over the last three years with zero look-ahead.
AA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.07% | 44% | 385 |
| 30-min | -0.24% | 42% | 386 |
| 60-min | -0.20% | 46% | 386 |
| to close | -0.06% | 49% | 386 |
| Middle 50% of AA reactions | -1.18% to +0.91% |
|---|---|
| Median reaction (30-min) | -0.24% |
| Measured reactions | 386 |
Half of all Alcoa Corporation news events land between -1.18% and +0.91% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How AA reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 48 | -0.44% | 31% | -0.51% |
| Analyst downgrades | 30 | +0.81% | 63% | +1.08% |
| Coverage initiations | 14 | -0.33% | 29% | -0.91% |
| Rating reiterations | 92 | -0.01% | 50% | -0.26% |
| Price-target raises | 37 | -0.16% | 41% | +0.10% |
| Price-target cuts | 30 | -0.45% | 20% | -0.75% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. See how AA ranks against every other measured name →
That’s how AA usually reacts — get an email when it moves on news →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.
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 | +1.82% | -0.55% | |
| Alcoa Corporation Reports Third Quarter 2026 Results | Press release | Business Wire | +1.82% | -0.55% | |
| Form 8-K Alcoa Corp For: Oct 15 | SEC filing · Form 8-K | SEC EDGAR | +1.82% | -0.55% | |
| Alcoa Corporation Announces Closing of Debt Offering to Finance Cash Consideration for Acquisition of South32’s Bauxite, Alumina and Aluminum Assets | Press release | Business Wire | -0.79% | -1.86% | |
| Form 8-K Alcoa Corp For: Sep 23 | SEC filing · Form 8-K | SEC EDGAR | -0.79% | -1.86% | |
| Form SD Alcoa Corp | SEC filing · Form SD | SEC EDGAR | +0.00% | -0.20% | |
| Alcoa Schedules Third Quarter 2026 Earnings Release and Conference Call | Press release | Business Wire | -1.21% | -1.40% | |
| Form 8-K Alcoa Corp For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | -1.17% | -0.96% | |
| Form 8-K Alcoa Corp For: Sep 09 | SEC filing · Form 8-K | SEC EDGAR | +1.36% | -1.59% | |
| Alcoa Corporation Announces Pricing of Debt Offering to Finance Cash Consideration for Acquisition of South32’s Bauxite, Alumina and Aluminum Assets | Press release | Business Wire | +1.36% | -1.59% | |
| Alcoa Corporation Announces Proposed Debt Offering to Finance Cash Consideration for Acquisition of South32’s Bauxite, Alumina and Aluminum Assets | Press release | Business Wire | -0.79% | -4.28% | |
| Form 8-K Alcoa Corp For: Sep 09 | SEC filing · Form 8-K | SEC EDGAR | -0.79% | -4.28% | |
| Form EFFECT Alcoa Corp | SEC filing · Form EFFECT | SEC EDGAR | -0.79% | -4.28% | |
| Form S-4 Alcoa Corp | SEC filing · Form S-4 | SEC EDGAR | +0.71% | +3.71% | |
| Alcoa to Participate in Jefferies Global Industrials Conference 2026 | Press release | Business Wire | +1.55% | +3.23% | |
| Australia, Japan, the United States and Alcoa Break Ground on Gallium Project in Western Australia | Press release | Business Wire | +0.37% | -4.10% | |
| 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% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AA section they belong to.
Where else AA is measured.
AA earnings → · Analyst actions → · SEC filings →
Other Basic Materials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Cleveland-Cliffs Inc. (CLF) | 389 | +0.10% | 52% |
| Olin Corporation (OLN) | 387 | -0.14% | 42% |
| Apogee Enterprises, Inc. (APOG) | 384 | -0.03% | 49% |
| Westlake Corporation (WLK) | 383 | +0.06% | 55% |
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 →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
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 386 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 2026-09-21.
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.