Stocks›Utilities›SO

SO

Southern Co

NYSEResearch view

Southern Co operates in the Electric Services industry.

$83.79+0.08%

Oct 5 close · 1D EOD · Databento

UtilitiesElectric ServicesLarge-capSEC EDGAR FY 2025-12-31

What happened

Daily closes · dots are Wire stories

1 story has a settled receipt so far (1 on the Wire). The record starts speaking at three.

What’s next

Expected around late October, going by its own filing history. The company has not announced a date yet. Its matching report came Oct 30, 2025 and Oct 31, 2024, before the open.

Last report

Jul 30, 2026−1.78%

before the open

Last 4, next close

median 2.60% either way

up 3 of 4

Every report since 2023 →Earnings calendar →

DateEventSourceNext close

Sep 4Southern Co (SO) Cleared PSC Review for 3.2GW of OpenAI Demand. Can Data Centers Lower Customer Bills Without Raising Grid Risk?Yahoo FinanceYahoo Finance−0.74%
Jul 30Earnings release, before the open · 8-KSEC EDGARSEC EDGAR ↗−1.78%

Next close = the first close after the event against the close before it. Prior-session closes only; not a call, not advice.

What happened · big days

15 big days in a year, and what we hold on each

A big day is a close more than 2.03% from the one before, three times SO’s median day (0.68%). On 12 of the 15, its peer group moved the same way at least half as far. We show what we hold. We never name a cause.

every other trading daya big day, numbered in the list below±2.03%Hover a bar for its day. Click a big day to open it.

Shaded: since our stories began, Jun 10. Tap a bar for its day.

#DaySOWhat we hold that dayGroup (median of 4) · each

1 Oct 10, 2025+2.25%
Before our storiesgroup −0.2%, did not move with it
1Oct 10, 2025+2.25%
Before our stories
−0.2% did not move with itD +1.2 · AEP +0.1 · NEE −0.4 · CEG −3.9
2 Dec 1, 2025−2.32%
Before our storiesgroup −2.3%, moved with SO
2Dec 1, 2025−2.32%
Before our stories
−2.3% moved with SOD −3.1 · AEP −2.6 · NEE −1.9 · CEG −1.5
3 Dec 19, 2025−2.22%
Before our storiesgroup −1.3%, moved with SO
3Dec 19, 2025−2.22%
Before our stories
−1.3% moved with SONEE −1.6 · CEG −1.6 · D −1.1 · AEP −0.9
4 Feb 3, 2026+2.20%
Before our storiesgroup +2.2%, moved with SO
4Feb 3, 2026+2.20%
Before our stories
+2.2% moved with SONEE +2.9 · D +2.3 · AEP +2.0 · CEG −0.9
5 Feb 13, 2026+2.58%
Before our storiesgroup +2.5%, moved with SO
5Feb 13, 2026+2.58%
Before our stories
+2.5% moved with SOCEG +4.5 · AEP +2.8 · D +2.1 · NEE +2.0
6 Feb 17, 2026−3.11%
Before our storiesgroup −0.5%, did not move with it
6Feb 17, 2026−3.11%
Before our stories
−0.5% did not move with itD −1.3 · NEE −1.2 · AEP +0.2 · CEG +5.0
7 Feb 19, 2026+4.40%
Resultsgroup +0.7%, did not move with it
7Feb 19, 2026+4.40%
ResultsFirst close after the Feb 19 results filing
+0.7% did not move with itD +1.1 · AEP +0.9 · NEE +0.5 · CEG −0.8
8 Mar 20, 2026−2.95%
Before our storiesgroup −2.9%, moved with SO
8Mar 20, 2026−2.95%
Before our stories
−2.9% moved with SOCEG −10.9 · NEE −3.1 · D −2.7 · AEP −2.4
9 Apr 23, 2026+2.22%
Before our storiesgroup +2.6%, moved with SO
9Apr 23, 2026+2.22%
Before our stories
+2.6% moved with SONEE +6.9 · AEP +2.6 · D +2.6 · CEG +1.9
10 Apr 30, 2026+3.41%
Resultsgroup +3.6%, moved with SO
10Apr 30, 2026+3.41%
ResultsFirst close after the Apr 30 results filing
+3.6% moved with SOCEG +5.4 · NEE +3.9 · D +3.2 · AEP +2.0
11 May 6, 2026−2.49%
Before our storiesgroup −1.5%, moved with SO
11May 6, 2026−2.49%
Before our stories
−1.5% moved with SOAEP −3.3 · D −2.1 · NEE −0.9 · CEG +0.7
12 Jun 1, 2026−3.28%
Before our storiesgroup −3.7%, moved with SO
12Jun 1, 2026−3.28%
Before our stories
−3.7% moved with SOCEG −7.7 · NEE −3.9 · D −3.5 · AEP −2.3
13 Jul 2, 2026+3.01%
Nothing on SOgroup +2.4%, moved with SO
13Jul 2, 2026+3.01%
Nothing on SONo SO story, brief or results filing in our record that day
+2.4% moved with SOD +2.9 · AEP +2.6 · NEE +2.3 · CEG +1.2
14 Jul 22, 2026+2.08%
Nothing on SOgroup +1.9%, moved with SO
14Jul 22, 2026+2.08%
Nothing on SONo SO story, brief or results filing in our record that day
+1.9% moved with SOCEG +4.8 · AEP +2.0 · D +1.8 · NEE +1.7
15 Aug 21, 2026−2.72%
Nothing on SOgroup −1.5%, moved with SO
15Aug 21, 2026−2.72%
Nothing on SONo SO story, brief or results filing in our record that day
−1.5% moved with SOAEP −3.8 · NEE −1.6 · D −1.3 · CEG −0.0

A story on the same day is not a cause, and a group move is not proof either. Group: the median of NEE, CEG, AEP and D that day, the largest companies in SO’s SEC industry; “moved with SO” means the same direction and at least half the size.

What’s next · results

Before the next report: what the first day after the last four did

Six trading days after each results filing (SEC 8-K, Item 2.02). SO reports before the open, so day 1 is that day’s close. 2 of 4 times, day 6 ended on the same side as day 1.

Reported Oct 30, 2025

day 1+1.67%day 6−2.79%

Reported Feb 19, 2026

day 1+4.40%day 6+5.83%

Reported Apr 30, 2026

day 1+3.41%day 6−1.15%

Reported Jul 30, 2026

day 1−1.78%day 6−3.28%

Next report: expected late OctoberEstimated from the dates of its last four results filings. Not announced. Since the Jul 30 report: −12.84%. Four reports is a small sample.

Every report since 2023 →

Each line is SO’s close against its close before the filing, on licensed end-of-day closes. What happened after each report, not a forecast; a move on the day is not a cause.

The numbers · FY2025, filed

SEC EDGAR

Market cap$94.4B

Revenue$29.6B+10.60%

Net income$4.3B

EPS, diluted$3.92−1.80%

Operating margin24.7%

Return on equity11.2%

All filed figures

Snapshot

SEC EDGAR · FY 2025-12-31

SectorUtilities

Market Cap$94.4B

Enterprise Value$92.7B

Income$4.3B

Sales$29.6B

Book/sh$34.48

Cash/sh$1.45

Dividend TTM—

Payout70%

Employees—

IPO—

Quick Ratio—

Current Ratio0.65

Debt/Eq—

EPS (ttm)$3.92

EPS this Y-1.8%

EPS past 3/5Y6.3%

Sales past 3/5Y0.3%

EPS Y/Y TTM-1.8%

Sales Y/Y TTM10.6%

Shs Outstand1.13B

ROA2.8%

ROE11.2%

ROIC16.3%

Gross Margin—

Oper. Margin24.7%

Profit Margin14.7%

Every figure here is filed with the SEC. Valuation and estimate metrics (P/E, PEG, EV/EBITDA, price targets, forward EPS) are omitted until our market-data feed is licensed for display — we’d rather show fewer numbers than blank ones. Deeper lines (cash flow, balance sheet) below.

Revenue by fiscal year

$23.1B

FY21

$29.3B

FY22

$25.3B

FY23

$26.7B

FY24

$29.6B

FY25

Operating leverage — margins

GrossOperatingNet

Financials, annual · income and cash flowSEC EDGAR · open ▸

Financials — annual

SEC EDGAR · last 5 FY · tap a row to explain it

USD	FY2021	FY2022	FY2023	FY2024	FY2025
Revenue	$23.1B	$29.3B	$25.3B	$26.7B	$29.6B
Gross Profit	—	—	—	—	—
Operating Income	$3.7B	$5.4B	$5.8B	$7.1B	$7.3B
Net Income	$2.3B	$3.4B	$4.0B	$4.4B	$4.3B
Diluted EPS	$2.24	$3.26	$3.62	$3.99	$3.92
Operating Cash Flow	$6.2B	$6.3B	$7.6B	$9.8B	$9.8B
Free Cash Flow	$-1.4B	$-1.6B	$-1.5B	$833.0M	$-2.9B

Same industry

SO against four utility peers, a year at 100

SO is down 11.4% in a year. American Electric Power is up 4.8%, Dominion Energy is down 0.4% and Nextera Energy 4.0%. Of these four, only Constellation Energy (−28.5%) did less. Weekly closes, Oct 3, 2025 = 100, on a log scale, so the same percentage move is the same height on every line.

Share this chart

SO −11.4%. American Electric Power +4.8%, Dominion Energy −0.4%, Nextera Energy −4.0%, Constellation Energy −28.5%. Weekly closes, Oct 3, 2025 = 100, log scale.

Share this chart

End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in SO’s SEC industry (Electric Services) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.

Same industry

In the screener →

NEE$160.2B CEG$91.2B AEP$65.1B D$53.9B VST$47.0B ETR$46.2B DTE$25.9B FE$25.1B

Follow the news. Track the move.

SO story timeline

Company updates and connected market context, with the dated price move attached.

Stories

Direct

SO direct/Energy

Sep 4

Southern Co (SO) Cleared PSC Review for 3.2GW of OpenAI Demand. Can Data Centers Lower Customer Bills Without Raising Grid Risk?

Southern Co. cleared a public-service commission review tied to 3.2GW of OpenAI data-center demand, advancing a major new electricity-load opportunity. The setup is constructive for SO’s growth profile, but the economics still depend on customer-bill protections and whether added load can be integrated without shifting grid costs or reliability risks to existing customers.

Since story

-4.9%

2026-09-04 → 2026-10-05

Yahoo Finance · 31d ago

View both sides →

Follow the news. Track the move.