Finn
SR Utilities · Gas utility · Regulated · Dividend · Thesis updated August 11, 2026

Cleaner Spire, cloudier Missouri

01 Running thesis

Simpler, but not safer yet

Spire has made a clear strategic turn. It bought the Tennessee gas utility business from Piedmont for $2.50 billion, closed the sales of Spire Marketing and Spire Storage, and agreed to sell Spire Mississippi. The goal is a cleaner company where almost all earnings come from regulated gas utility rates.

That is the bull case. A regulated utility can be easier to value than a mixed gas utility, marketer, and storage company. If Tennessee integrates well, the final sale closes, and regulators allow fair returns, Spire could offer steadier earnings and slow rate base growth.

The bear case revolves around Missouri. Missouri's weather normalization mechanism, which is meant to smooth earnings when weather is odd, did not protect Spire during the recent winter. Management recently settled its request for relief with regulators. The settlement provides no recovery for past lost margins, making the financial hit permanent.

The next year is mostly about proof. Investors need to see a durable fix in the November 2026 Missouri rate case and the closing of the Spire Mississippi divestiture. Until then, the company is simpler on paper, but still faces real regulatory risk.

Aug 2026Spire closed the sale of Spire Storage and reached a settlement in Missouri that denies past weather margin recovery but outlines a path to a future fix.
May 2026Spire lowered fiscal 2026 adjusted EPS guidance from continuing operations to $3.90 to $4.10 after Missouri weather protection failed to offset weak winter usage. The Missouri AAO became the main near-term catalyst.
May 2026The fiscal 2026 Q2 filing confirmed the $2.50 billion Tennessee utility acquisition closed and Spire now reports one segment, Gas Utility. It also showed the sale plan for Spire Storage and Spire Mississippi.
Feb 2026Spire gave more detail on the financing plan for the Tennessee acquisition, including junior subordinated and senior notes. That reduced the immediate funding question, while bridge refinancing still needed watching.
Nov 2025The fiscal 2025 10-K showed storage had been a major growth driver, but management also said it was considering selling storage assets to help fund Tennessee. The thesis began to shift from growth mix to transaction execution.
Aug 2025Spire announced a definitive agreement to buy Piedmont's Tennessee gas business for $2.48 billion. The deal added a new regulated growth path but also brought financing, approval, and integration risk.
Apr 2025The Q2 fiscal 2025 filing showed stable Gas Utility earnings and strong Midstream growth from storage assets. Gas Marketing remained more volatile.
Feb 2025The Q1 fiscal 2025 filing supported the earlier view: utility earnings were steady, storage was growing, and gas marketing profits fell with lower market volatility.
02 Business model

Paid through utility bills

Spire sells and delivers natural gas to homes, stores, factories, and other customers. It also moves gas for some large customers that buy gas on their own. Most of the profit comes from approved utility rates, not from betting on gas prices.

The basic deal is set by state regulators. Spire spends money on pipes, meters, safety work, and service. Regulators then set customer rates that are meant to let Spire recover costs and earn an allowed return on its rate base, which is the utility asset base used to set rates.

This model can be steady, but it is not automatic. Spire earns much of its money in the winter heating season. If customer usage falls in ways the rate design does not cover, the company can miss its expected margin, as it just did in Missouri.

The moat is local monopoly service. In its service areas, customers generally cannot choose another gas delivery network. The tradeoff is that regulators control what Spire can charge.

03 Product portfolio

Gas service, by territory

Cash cow

Spire Missouri

Spire Missouri is the largest natural gas distribution utility in Missouri. It serves St. Louis, Kansas City, and other areas, but it is also where the current weather normalization problem sits.

Steady

Spire Alabama

Spire Alabama serves central and northern Alabama, including Birmingham and Montgomery. It is a regulated gas utility with rates overseen by the Alabama Public Service Commission.

Growth engine

Spire Tennessee

Spire Tennessee is the newly acquired Nashville-area gas utility. Management expects it to add scale in a faster-growing region, but integration and financing still matter.

Steady

Spire Gulf

Spire Gulf serves customers in southern Alabama. It remains part of the regulated gas utility business.

Option

Spire Mississippi

Spire Mississippi is under agreement to be sold for $75.0 million, subject to approval and closing conditions. Until the sale closes, it remains a small regulated utility exposure.

Steady

Transportation service

Some larger customers buy their own gas in the wholesale market and pay Spire to move it through the local system. This is still a regulated utility service.

04 Business segments

One reported segment now

Gas Utility100%modest
Discontinued and pending-sale operations0%declining

In the fiscal 2026 Q2 Form 10-Q, Spire said it has one reportable segment: Gas Utility. Former Gas Marketing and Midstream operations are treated as discontinued or pending-sale activities, so the mix below is a reporting view, not a revenue split.

05 Risk factors

What could go wrong

Missouri rate case design

High impact · Medium odds

Spire reached a settlement that denied recovery of past weather-driven margin losses. The company now must fix the broken weather normalization design in its November 2026 rate case. If regulators refuse a durable fix, future winters could create more earnings surprises.

We watchThe November 2026 Missouri general rate case filing and resulting orders on weather normalization.

Alabama rate decisions

Medium impact · Medium odds

Spire Alabama and Spire Gulf face regulatory decisions in September 2026 regarding their return on equity. Management requested a 10.5 to 10.75 percent range. A lower allowed return would limit earnings power in the South.

We watchThe September 2026 regulatory decisions for Alabama RSE renewals.

Divestiture closing risk

Low impact · Low odds

Spire has agreed to sell Spire Mississippi for $75.0 million. Those proceeds are part of the plan to simplify the company and reduce leverage after the Tennessee acquisition. If approvals take longer or the deal fails to close, debt pressure stays slightly higher.

We watchClosing announcements for Spire Mississippi.

Tennessee integration strain

Medium impact · Medium odds

The Tennessee deal added a large new utility business for a $2.50 billion cash purchase price. The asset may improve growth and regulatory diversity, but it also brings integration work, new local regulation, and financing needs. A poor start would weaken the core bull case.

We watchSpire Tennessee service metrics, customer growth, first rate filings, and management comments on integration costs.

High balance sheet load

High impact · Medium odds

Spire's strategy relies on regulated growth, but utility growth needs capital. The Tennessee purchase increased the size of the company and its funding needs. Finn's low financial health score reflects that investors should not ignore leverage and refinancing risk.

We watchDebt balances, credit rating actions, interest expense, and how much sale proceeds are used to pay down debt.
06 Quick answers

In one breath

What does Spire Inc. do?

Spire delivers natural gas through regulated local utility systems. Its main service areas are in Missouri, Alabama, Tennessee, and the Gulf region.

Why did Spire sell non-core businesses?

Management wants Spire to be a simpler regulated gas utility. The sales of Spire Marketing and Spire Storage have closed, and Spire has agreed to sell Spire Mississippi to help fund the Tennessee deal and reduce debt.

What is the main risk for Spire stock now?

The key near-term risk is Missouri regulation. Spire recently lost its bid to recover past weather-related margin losses, making a structural fix in its November 2026 rate case vital.

Is Spire a growth company?

Spire is more of a slow utility grower than a fast growth stock. Growth comes from customer additions, infrastructure spending, approved rates, and the new Tennessee utility.

Get started with Finn today