Ameren Corporation (AEE)
How AEE actually reacts to news — the realized, point-in-time move the market made, measured across 451 labeled events over the last three years with zero look-ahead.
AEE’s median reaction, across the day.
Half of all Ameren Corporation news events land between -0.34% and +0.33% at 30 minutes.
Reaction stats as of 2026-08-13. Reaction = percent move vs. the price at the news timestamp.
Email me when AEE moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to AEE’s baseline. Nothing else.
Get “How AEE reacts to news” as a PDF.
A free one-page summary: AEE’s median reaction to news and the full breakdown by event type — the numbers on this page, in one page.
Recent AEE events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Ameren Corporation Directors Declare Quarterly Dividend | Press release | PR Newswire | +0.01% | +0.05% | |
| Form 8-K AMEREN CORP For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | -1.05% | -0.03% | |
| Form S-3ASR AMEREN CORP | SEC filing · Form S-3ASR | SEC EDGAR | +0.03% | -0.06% | |
| Ameren Announces Second Quarter 2026 Results | Press release | PR Newswire | -1.22% | +0.77% | |
| Form 8-K AMEREN CORP For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | -1.22% | +0.77% | |
| Ameren Missouri plans new energy center to deliver long-term value and around-the-clock power | Press release | PR Newswire | +0.04% | -0.87% | |
| Ameren Corporation Second Quarter 2026 Earnings Webcast set for July 31, 2026 | Press release | PR Newswire | +0.25% | +1.00% | |
| Form 8-K AMEREN CORP For: Jun 29 | SEC filing · Form 8-K | SEC EDGAR | -0.01% | -0.07% | |
| Form 11-K AMEREN CORP For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.04% | +2.78% | |
| Storm hardening, electric grid upgrades and new generation underpin request to update electric rates in mid-2027 | Press release | PR Newswire | +0.29% | -1.55% | |
| Ameren Missouri Announces Pricing of First Mortgage Bonds due 2056 | Press release | PR Newswire | +0.71% | +0.52% | |
| Aaron Melda Named Chairman and President of Ameren Missouri | Press release | PR Newswire | -0.41% | +0.11% | |
| MISO selects consortium of Ameren, GridLiance, Dairyland, Illinois Municipal Electric Agency to deliver major grid-bolstering projects in Illinois | Press release | PR Newswire | +0.20% | +1.72% | |
| Ameren Corporation Directors Declare Quarterly Dividend | Press release | PR Newswire | +0.06% | -0.61% | |
| Form S-3ASR AMEREN CORP | SEC filing · Form S-3ASR | SEC EDGAR | +0.04% | -0.47% | |
| Form 10-Q AMEREN CORP For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.08% | -0.10% | |
| Ameren Announces First Quarter 2026 Results | Press release | PR Newswire | +0.31% | +0.31% | |
| Form 8-K AMEREN CORP For: May 05 | SEC filing · Form 8-K | SEC EDGAR | +0.31% | +0.31% | |
| Ameren Corporation First Quarter 2026 Earnings Webcast set for May 6, 2026 | Press release | PR Newswire | +0.91% | +1.56% | |
| Form ARS AMEREN CORP For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.22% | +1.48% | |
| Form DEF 14A AMEREN CORP For: May 14 | SEC filing · Form DEF | SEC EDGAR | +0.22% | +1.48% | |
| Form DEF 14C Ameren Illinois Co For: May 14 | SEC filing · Form DEF | SEC EDGAR | +0.22% | +1.48% | |
| Form DEF 14C UNION ELECTRIC CO For: May 14 | SEC filing · Form DEF | SEC EDGAR | +0.22% | +1.48% | |
| Form DEFA14A AMEREN CORP | SEC filing · Form DEFA14A | SEC EDGAR | +0.22% | +1.48% | |
| Form DEFA14C Ameren Illinois Co | SEC filing · Form DEFA14C | SEC EDGAR | +0.22% | +1.48% | |
| Form DEFA14C UNION ELECTRIC CO | SEC filing · Form DEFA14C | SEC EDGAR | +0.22% | +1.48% | |
| Form 8-K AMEREN CORP For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | +0.09% | +0.30% | |
| Form 8-K AMEREN CORP For: Feb 27 | SEC filing · Form 8-K | SEC EDGAR | +0.01% | +0.09% | |
| Ameren Announces Pricing of Senior Notes due 2036 | Press release | PR Newswire | -0.32% | +0.70% | |
| Ameren Missouri Announces Pricing of First Mortgage Bonds due 2036 and First Mortgage Bonds due 2056 | Press release | PR Newswire | -0.79% | +0.14% | |
| Ameren Missouri is building a stronger grid and delivering reliability for customers | Press release | PR Newswire | -0.70% | +0.82% | |
| Ameren Announces 2025 Results, Affirms Guidance for 2026 Earnings and Issues Long-Term Growth Guidance | Press release | PR Newswire | -0.70% | +0.82% | |
| Form 8-K AMEREN CORP For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | -0.70% | +0.82% | |
| Missouri approves first-of-its kind resource to boost energy reliability | Press release | PR Newswire | -0.70% | +0.82% | |
| Form 8-K AMEREN CORP For: Feb 06 | SEC filing · Form 8-K | SEC EDGAR | -0.01% | +1.06% | |
| Tim Rausch joins Ameren board of directors | Press release | PR Newswire | -0.01% | +1.06% | |
| Ameren Corporation increases quarterly cash dividend by 5.6 percent, marking 13 consecutive years of growth | Press release | PR Newswire | +0.13% | +0.70% | |
| Ameren Corporation Fourth Quarter 2025 Earnings Webcast set for Feb. 12, 2026 | Press release | PR Newswire | -0.01% | -0.34% | |
| Ameren delivers big economic benefits for Missouri and Illinois | Press release | PR Newswire | -0.15% | +0.26% | |
| Form 8-K AMEREN CORP For: Dec 12 | SEC filing · Form 8-K | SEC EDGAR | +0.24% | -0.90% | |
| Jamie Engstrom joins Ameren board of directors | Press release | PR Newswire | +0.24% | -0.90% | |
| State regulators approve Ameren Missouri's plan to reliably serve new large businesses, boosting state's economy while safeguarding consumers | Press release | PR Newswire | +0.55% | -0.60% | |
| Ameren Announces Third Quarter 2025 Results | Press release | PR Newswire | -0.67% | -0.75% | |
| Form 8-K AMEREN CORP For: Nov 05 | SEC filing · Form 8-K | SEC EDGAR | -0.67% | -0.75% | |
| Ameren Corporation names new general counsel | Press release | PR Newswire | +0.01% | +0.12% | |
| Ameren Corporation Third Quarter 2025 Earnings Webcast Nov. 6, 2025 | Press release | PR Newswire | +0.12% | +0.95% | |
| Ameren Corporation announces leadership changes | Press release | PR Newswire | -0.04% | +0.37% | |
| Form 8-K AMEREN CORP For: Oct 14 | SEC filing · Form 8-K | SEC EDGAR | -0.04% | +0.37% | |
| Ameren Corporation Directors Declare Quarterly Dividend | Press release | PR Newswire | -0.14% | -0.05% | |
| Form 8-K AMEREN CORP For: Oct 02 | SEC filing · Form 8-K | SEC EDGAR | -0.18% | +0.76% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the AEE section they belong to.
More of the dataset.
AEE earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Ameren Corporation's median reaction calculated?
Every labeled AEE 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 451 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. 51% of AEE'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 AEE'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.