Ameren Raised the Growth Rate. The Stock Shrugged.

A $38 billion capital plan, an 8–10% EPS promise, and $5 billion of equity to fund it — the dilution math is now the whole argument

AEE · Earnings Call · 2026-11-06

The update was large; the reaction was not

On November 6, Ameren did what a utility in an AI-power boom is supposed to do: it raised 2026 guidance to $5.35–$5.55, introduced 2027 at $5.70–$5.90 (an 8.4% step-up off the original 2026 midpoint), and — the real headline — lifted its long-term growth outlook to “compound annual earnings per share growth of 8% to 10% from 2027 through 2031” — Martin Lyons, Chairman, President and Chief Executive Officer · 2026-11-06, up from the 6–8% it had lived with for years. Behind that sits a $38.1 billion five-year capital plan (up more than 20%), a 13.3% rate base CAGR, and a ten-year investment pipeline that grew by $19 billion to more than $90 billion, anchored in the Preferred Resource Plan filed with Missouri regulators in September. And the stock did nothing. Ameren is 4.6% below its June 26 high of $118.32 and down 1.9% over the last 90 sessions — a flat tape for a company that just told investors its growth rate is going up. That divergence is the story, because the theme Ameren is sprinting into is the one the market has been quietly marking down. Globally, the AI data center complex is one of the weakest clusters in the tape, down roughly 29% over 90 days across dozens of names. Ameren is adding 7.7 gigawatts of generation — an 80% increase in installed capacity — to serve hyperscalers just as that cohort de-rates.

The gap between rate base and earnings is the whole debate

Analysts went straight at the arithmetic. Wells Fargo's Andrew Kadavy noted the delta between rate base CAGR and EPS CAGR has widened; Jefferies' Julien Dumoulin-Smith put a finer point on it, asking whether the plan implies roughly 300 basis points of dilution. Marty Lyons did not flinch: “that equity dilution is the primary driver of the difference between the rate base growth plans that we have and the EPS growth that we expect to be able to deliver over the next 5 years” — Martin Lyons, Chairman, President and Chief Executive Officer · 2026-11-06. CFO Lenny Singh laid out the tab: roughly $5 billion of equity from 2027 through 2031, with $1.7 billion already sold forward through the at-the-market program, plus hybrid debt that earns 50% equity credit. This is not a new question — it is a recurring structural feature of the Ameren model that got bigger. In February 2026, Kadavy asked almost the identical thing when the numbers were 10.6% rate base against 6–8% EPS. Lyons' answer then was the same one: “the amount of equity that we plan to issue, and think about the dilution from that, that is the primary difference” — Martin J. Lyons, Chairman, President and Chief Executive Officer · 2026-02-12. What changed is scale: the gap widened as the capital plan grew. Notably, equity dilution shows up in this quarter's own keyword set for the first time — a phrase management would rather not headline, surfacing because it is now unavoidable. So while the growth rate went up, so did the number of shares required to fund it.

The quiet part: nothing new was signed

The engine under all of this is the Electric Service Agreements — 2.8 gigawatts with Google and Amazon, representing $25 billion of announced customer investment in Missouri. But 2.8 gigawatts is exactly what was signed last quarter. There were no new ESAs in Q3. Instead, 600 megawatts migrated from completed interconnection studies into construction agreements, giving 1.2 gigawatts under construction agreements plus 4.4 gigawatts with studies done — the large load customer funnel management now frames as 5.6 gigawatts of "firmed" interest. That is real progress, but it is pipeline movement, not contract signature. Lyons was candid: “I am optimistic that in 2027, we'll see further energy services agreements signed, but can't put a definitive time line on that” — Martin Lyons, Chairman, President and Chief Executive Officer · 2026-11-06. Meanwhile the phrase that carried the last four calls — the gigawatt count of signed ESAs — is fading in prominence precisely because it has been frozen and rolled into the capital plan. What management stops repeating is as informative as what it starts.

The financials say rate base, not volume

Strip out the narrative and the reported numbers explain why this is a capital-recovery story rather than a demand story. Revenue in the latest filed quarter was $2.1 billion, down 6% year over year, yet net income rose 14% and net margin reached 15.1%, up 2.6 points. The warmest St. Louis summer in more than 50 years helped; so did disciplined cost work. Capital spending runs at about $1.1 billion a quarter, a spend rate that has roughly quadrupled since 2016 and is why non-current debt sits at $19.1 billion. That debt load is the leash. Interest coverage of 2.2x is a shadow of the 7.2x peak in 2015, and management explicitly tied its plan to holding BBB+/Baa1. A stock at 20x earnings is not priced for a stumble in either the rate case or the financing window. The regulatory calendar is dense and mostly back-loaded: Missouri direct testimony in early December, an order by May 2027 and new rates by June; an Illinois Commerce Commission decision expected in December on a $2.7 billion grid plan that the administrative law judge recommended trimming by about $200 million.

Construction risk is the newest worry

Lyons volunteered an unusually long riff on upside — new ESAs would “strengthen the EPS growth rate in the outer years of this 5-year plan and lengthen the period of this strong growth” — Martin Lyons, Chairman, President and Chief Executive Officer · 2026-11-06 — and insisted the plan is deliberately conservative. But Dumoulin-Smith pressed the bear case that matters: can the E&C supply chain actually deliver 7.7 gigawatts? Michael Moehn's answer leaned hard on long lead time material already in hand and a repeatable execution model: “We have 2 simple cycles that are under construction. We have all the long lead time material.” — Michael Moehn, Group President, Ameren Utilities · 2026-11-06 Local partners Alberici and McCarthy, engineer Sargent & Lundy, standardized designs. Fair enough — but construction risk never appeared in Ameren's keyword set before this quarter, and it is now a top-30 theme. That shift is itself the signal.

What to watch

Ameren is now one of the largest utility expressions of the data-center buildout: peers like ATO and PEG talk about the large load customer queue, but few have 2.8 gigawatts signed and a 13.3% rate base CAGR attached to it. The bull case needs three things to land in sequence — new ESAs signed in 2027, a constructive Missouri settlement in late February or March, and equity issued into a stock near its highs rather than its lows. The bear case is simpler: a 13.3% rate base funded with $5 billion of dilution, against sales that are contracted for only 2.8 gigawatts and a market that has stopped paying up for AI-power stories.