XOOMAR

SOUTHERN CO (SO)

Every FINRA and SEC series the site collects for SOUTHERN CO: short interest with days to cover, daily short sale volume, fails to deliver and Form 4 insider trades. Listed on NYSE, classified by the SEC as electric services.

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35.2M

Short interest

settlement 2026-08-31

6.1

Days to cover

+8.0% vs prior

47.7%

Short share of volume

2026-09-11

5,418

Fails to deliver

settlement 2026-08-07

-$834K

Insider flow, 90 days

0 buys, 5 sells

As of 2026-09-11.

Short interest

FINRA, twice a month; the last 12 months shown, all 48 settlements in the JSON

As of 31 August 2026, short interest in SO is 35,194,234 shares, down 1,172,045 shares over the last month. Over the last 48 readings it ranged from 17,307,256 shares (15 November 2024) to 41,384,243 shares (15 October 2025). At the reported average volume of 5.8M shares a day that is 6.1 days to cover, elevated.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-08-3135,194,234+8.0%5,793,7876.07
2026-08-1432,587,743-10.4%5,800,6875.62
2026-07-3136,366,279-0.6%4,949,2307.35
2026-07-1536,593,870-2.2%4,336,9658.44
2026-06-3037,411,093+22.7%8,302,0204.51
2026-06-1530,487,332+2.6%6,303,6424.84
2026-05-2929,714,772+14.4%5,397,5125.51
2026-05-1525,966,609+5.5%5,901,4744.40
2026-04-3024,610,369-1.9%4,204,7315.85
2026-04-1525,093,807-7.5%4,393,0145.71
2026-03-3127,124,191+12.7%5,233,7595.18
2026-03-1324,071,698+2.1%5,827,0084.13
2026-02-2723,584,129-4.0%8,551,5752.76
2026-02-1324,567,203-5.1%6,990,8463.51
2026-01-3025,897,190+0.0%6,173,4804.19
2026-01-1525,893,160-3.0%4,469,9185.79
2025-12-3126,706,630+4.7%5,056,4705.28
2025-12-1525,511,417-24.0%7,035,2443.63
2025-11-2833,570,464-11.6%5,282,9976.35
2025-11-1437,961,722-0.8%7,450,9665.09
2025-10-3138,277,756-7.5%4,981,3107.68
2025-10-1541,384,243+8.9%5,051,4788.19
2025-09-3038,006,947+15.4%6,328,4106.01
2025-09-1532,942,556-5.3%3,619,5969.10

Daily short volume

FINRA Reg SHO, last 60 sessions. JSON

As of 11 September 2026, the short share of SO volume is 47.7%, up 6.8 points over the last five sessions. Over the last 52 readings it ranged from 20.8% (24 August 2026) to 79.9% (23 July 2026). The latest reading is 4.7 points below the 30-session average of 52.4%, on 2.2M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-09-111.0M2.2M47.7%1,487
2026-09-10898K1.7M52.8%4,967
2026-09-09888K1.9M46.6%6,865
2026-09-081.1M2.1M53.8%387
2026-09-04645K1.5M42.8%1,209
2026-09-031.1M2.6M40.9%414
2026-09-021.1M2.1M51.5%1,383
2026-09-01571K1.6M34.6%450
2026-08-31652K2.4M27.7%6,349
2026-08-281.4M2.7M50.2%1,258
2026-08-271.1M2.7M40.2%21,309
2026-08-26946K1.8M51.7%12,581
2026-08-25713K2.0M36.0%10,256
2026-08-24932K4.5M20.8%2,143
2026-08-211.3M2.3M58.5%302
2026-08-201.1M1.9M57.8%2,305
2026-08-19758K1.2M60.8%9,822
2026-08-18848K1.4M60.9%3,321
2026-08-171.1M2.0M55.2%1,989
2026-08-14886K1.5M58.2%2,939
2026-08-13875K1.4M62.0%31,794
2026-08-12583K1.0M58.1%778
2026-08-111.0M2.1M48.9%4,071
2026-08-10969K1.6M60.2%9,162
2026-08-07814K1.4M56.4%13,461
2026-08-061.3M1.7M72.9%12,657
2026-08-051.7M2.5M66.8%5,273
2026-08-044.0M5.8M70.3%10,545
2026-08-032.1M2.9M73.2%99,769
2026-07-31925K1.7M54.9%766

Fails to deliver

SEC, by settlement date. JSON

As of 7 August 2026, the fails-to-deliver balance in SO is 5,418 shares, up 5,340 shares over the last settlement date. Over the last 52 readings it ranged from 2 shares (26 March 2026) to 282,225 shares (7 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-08-075,418$92.90$503K
2026-07-3178$94.34$7K
2026-07-3074$96.05$7K
2026-07-143,002$96.47$290K
2026-07-134,718$95.61$451K
2026-07-0825,832$97.29$2.5M
2026-07-07282,225$95.99$27.1M
2026-07-0615,780$97.98$1.5M
2026-06-303,003$96.75$291K
2026-06-2919,581$97.16$1.9M
2026-06-26466$95.91$45K
2026-06-24810$94.93$77K
2026-06-229,832$93.09$915K
2026-06-1849$92.53$5K
2026-06-16670$93.82$63K
2026-06-089,491$92.60$879K
2026-06-0427$90.49$2K
2026-05-2914,086$92.52$1.3M
2026-05-18142,842$92.55$13.2M
2026-05-14575$93.14$54K
2026-05-1116$91.80$1K
2026-05-05246,546$95.99$23.7M
2026-05-044,582$96.71$443K
2026-04-27303$93.49$28K
2026-04-20150$94.51$14K
2026-04-16803$94.64$76K
2026-04-159$95.96$864
2026-04-081,249$96.82$121K
2026-04-06151,967$97.45$14.8M
2026-04-012,324$96.52$224K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

Insiders at SO reported 5 open-market sells worth $834K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Sena Peter P III (Chairman,President &amp; CEO, SNC) on 2026-09-03.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-03Sena Peter P IIIChairman,President &amp; CEO, SNCSell4K$88.59$378K27K
2026-09-03Kim Matthew M.ComptrollerSell1K$88.87$124K5K
2026-09-01Kim Matthew M.ComptrollerSell100$88.45$9K6K
2026-08-06Spainhour Sterling A Jr.EVP &amp; CLOSell3K$94.02$313K35K
2026-08-03Kim Matthew M.ComptrollerSell100$94.28$9K6K
2026-06-28Sena Peter P IIIChairman,President & CEO, SNCOption exercise712$0.00$032K
2026-06-28Sena Peter P IIIChairman,President & CEO, SNCTax withholding316$97.16$31K31K
2026-06-01Kim Matthew M.ComptrollerSell100$91.16$9K7K
2026-05-24WOMACK CHRISTOPHER CChairman, President &amp; CEOTax withholding3K$94.55$323K213K
2026-05-24WOMACK CHRISTOPHER CChairman, President &amp; CEOOption exercise8K$0.00$0217K
2026-05-01Kim Matthew M.ComptrollerSell100$96.57$10K7K
2026-04-01Kim Matthew M.ComptrollerTax withholding82$96.94$8K7K
2026-04-01Kim Matthew M.ComptrollerOption exercise82$0.00$07K
2026-03-30Greene Kimberly S,Chairman, President &amp; CEO, GPCSell25K$96.67$2.4M104K
2026-03-19Cummiskey ChristopherEVPSell7K$96.55$644K31K
2026-03-18Connally Stan WEVP &amp; COOSell13K$97.13$1.2M161K
2026-03-08Drake Sloane NEVP &amp; CHROTax withholding633$97.48$62K39K
2026-03-08Drake Sloane NEVP &amp; CHROOption exercise1K$0.00$040K
2026-03-06Spainhour Sterling A Jr.EVP & CLOI6K$97.64$618K704
2026-03-06Spainhour Sterling A Jr.EVP &amp; CLOI6K$97.64$618K704
2026-02-26EARLEY ANTHONY F JRn/aGift15K$0.00$09K
2026-02-24Kim Matthew M.ComptrollerSell5K$95.15$487K7K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOTax withholding52K$90.86$4.7M209K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOGrant117K$0.00$0261K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOTax withholding7K$90.86$615K144K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOOption exercise14K$0.00$0151K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOTax withholding28K$90.86$2.5M137K
2026-02-16WOMACK CHRISTOPHER CChairman, President &amp; CEOGrant62K$0.00$0165K
2026-02-11Sena Peter P IIIChairman,President &amp; CEO, SNCTax withholding1K$90.86$93K31K
2026-02-11Sena Peter P IIIChairman,President &amp; CEO, SNCOption exercise2K$0.00$032K
2026-02-11Sena Peter P IIIChairman,President &amp; CEO, SNCTax withholding10K$90.86$915K30K
2026-02-11Sena Peter P IIIChairman,President &amp; CEO, SNCGrant23K$0.00$040K
2026-02-11Spainhour Sterling A Jr.EVP &amp; CLOTax withholding1K$90.86$102K39K
2026-02-11Spainhour Sterling A Jr.EVP &amp; CLOOption exercise3K$0.00$040K
2026-02-11Spainhour Sterling A Jr.EVP &amp; CLOTax withholding14K$90.86$1.2M37K
2026-02-11Spainhour Sterling A Jr.EVP &amp; CLOGrant31K$0.00$051K
2026-02-11Poroch David P.EVP &amp; CFOTax withholding281$90.86$26K48K
2026-02-11Poroch David P.EVP &amp; CFOOption exercise568$0.00$048K
2026-02-11Poroch David P.EVP &amp; CFOTax withholding3K$90.86$265K48K
2026-02-11Poroch David P.EVP &amp; CFOGrant9K$0.00$051K
2026-02-11Peoples James JeffreyChairman, President &amp; CEO, APCTax withholding1K$90.86$131K42K
2026-02-11Peoples James JeffreyChairman, President &amp; CEO, APCOption exercise3K$0.00$044K
2026-02-11Peoples James JeffreyChairman, President &amp; CEO, APCTax withholding19K$90.86$1.7M41K
2026-02-11Peoples James JeffreyChairman, President &amp; CEO, APCGrant42K$0.00$059K
2026-02-11Kim Matthew M.ComptrollerTax withholding2K$90.86$183K14K
2026-02-11Kim Matthew M.ComptrollerGrant4K$0.00$014K
2026-02-11Kerr, II James YChairman, President &amp; CEO, GASTax withholding1K$90.86$127K183K
2026-02-11Kerr, II James YChairman, President &amp; CEO, GASOption exercise3K$0.00$0184K
2026-02-11Kerr, II James YChairman, President &amp; CEO, GASTax withholding20K$90.86$1.8M181K
2026-02-11Kerr, II James YChairman, President &amp; CEO, GASGrant45K$0.00$0201K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are the rarer, stronger signal.

Large holders (13D and 13G)

One row per reporting person, newest filing first. JSON

4 holders above 5% have filed on SO, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.4% of the class (83,145,596 shares), filed 2026-04-30 for an event on 2026-03-31.

FiledFormHolderSharesOf classEvent
2026-05-1413GCapital World Investorsinvestment adviser63.0M5.6%2026-03-31
2026-04-3013GVanguard Capital Managementinvestment adviser83.1M7.4%2026-03-31
2026-03-2713G/Ano. 11The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-03-0513G/Ano. 2JPMORGAN CHASE & CO.parent holding company41.3M3.7%2026-02-27

13F holders

Tracked managers holding SO at their latest 13F. JSON

16 of the 30 tracked managers held SO at their latest 13F, $761.7M in total at quarter-end prices. Citadel Advisors is the largest at $263.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 10 cut.

FundQuarterSharesValueOf portfolioChange in shares
Citadel Advisors2026-06-302.8M$263.7M0.03%+758K
Millennium Management2026-06-3081.5M$82.4M0.03%+80.9M
Point72 Asset Management2026-06-3061.3M$67.6M0.07%+24.3M
Millennium Management2026-06-3055.0M$60.6M0.02%-26.4M
Millennium Management2026-06-30527K$50.5M0.02%-9K
AQR Capital Management2026-06-30457K$43.7M0.02%+76K
Two Sigma Investments2026-06-30667K$33.2M0.02%-22.9M
Two Sigma Investments2026-06-30328K$31.4M0.02%-339K
Two Sigma Investments2026-06-3028.0M$30.8M0.02%+10.0M
D. E. Shaw & Co.2026-06-30308K$29.5M0.01%-51K
Point72 Asset Management2026-06-30275K$26.3M0.03%-61.1M
Two Sigma Investments2026-06-3023.6M$23.8M0.02%-4.4M
Fisher Asset Management2026-06-30117K$11.2M0.00%-5K
D. E. Shaw & Co.2026-06-30100K$5.0M0.00%-208K
Bridgewater Associates2026-06-3017K$1.6M0.01%+5K
Millennium Management2026-06-305K$231K0.00%-55.0M

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q1 2026 (quarter ended 2026-03-31) SOUTHERN CO reported revenue of $8.40B, up 8.0% from the same quarter a year earlier, and net income of $1.36B (1.20 diluted EPS). In FY 2025 it generated $9.80B of operating cash flow and spent $3.02B on dividends.

Cash
$981.0M
Total assets
$157.03B
Shares outstanding
1,127,301,098

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q1 20262026-03-31$8.40B$1.36B16.1%1.20
Q4 2025derived2025-12-31$6.98B$416.0M6.0%n/a
Q3 20252025-09-30$7.82B$1.71B21.9%1.54
Q2 20252025-06-30$6.97B$880.0M12.6%0.79
Q1 20252025-03-31$7.78B$1.33B17.2%1.21
Q4 2024derived2024-12-31$6.34Bn/an/an/a
Q3 20242024-09-30$7.27B$1.53B21.1%1.39
Q2 20242024-06-30$6.46B$1.20B18.6%1.09

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$29.55B$4.34B$9.80B$12.74Bn/a$3.02B
FY 20242024-12-31$26.72B$4.40B$9.79B$8.96Bn/a$2.95B
FY 20232023-12-31$25.25B$3.98B$7.55B$9.10Bn/a$3.04B
FY 20222022-12-31$29.28Bn/a$6.30B$7.92Bn/a$2.91B
FY 20212021-12-31$23.11Bn/a$6.17B$7.59Bn/a$2.78B

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are cash paid to repurchase common stock in the year (XBRL PaymentsForRepurchaseOfCommonStock), not authorizations. Balance sheet lines are as of 2026-03-31; shares outstanding as of 2026-03-31 from the cover page.

What this page is

SOUTHERN CO in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page pulls every series the site collects for one ticker onto one URL, keyed by the SEC's own ticker list, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a summary sentence built from the rows (last value, change, range with dates) and its own JSON and CSV links. Nothing on the page is written by a model; the sentences change only when the data does. A page exists only for companies with data in at least two series, and every section says when its source last updated.

This page follows SOUTHERN CO (SO), SEC CIK 92122, listed on NYSE, classified by the SEC as electric services. The cross-market tables live on the short interest and insider transactions hubs.

Source and method

Short interest
FINRA consolidated short interestTwice a month, about eight business days after settlement. Latest 2026-08-31.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesEvery trading day, loaded the following morning. Latest 2026-09-11.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataTwice a month, a few weeks after the half month ends. Latest 2026-08-07.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GEDGAR read every 30 minutes; 13D within five business days of crossing 5%, 13G on the passive schedule. Latest 2026-05-14.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRQuarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC XBRL company factsRefreshed weekly from the SEC's structured data; values are as filed in the 10-Q and 10-K. Latest 2026-03-31.JSON and CSV
Insider trades
SEC EDGAR Form 4EDGAR read every 30 minutes; filings are due two business days after the trade. Latest 2026-09-03.JSON and CSV
Company record
EDGAR filing index for CIK 92122Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
30 requests a minute without a key, 120 a minute with a key from a free account.

Data checks. Every dataset is checked against its source once a day. This dataset passed the last run, 14 Sep 05:40 UTC.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a crowded short are the combination that has historically preceded squeezes; insider sells next to a crowded short are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of SO is sold short?
35,194,234 shares were held short at the 2026-08-31 settlement, 6.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is SO's daily short volume?
On 2026-09-11, 1,032,942 of the 2,165,346 SO shares reported to FINRA were sold short, 47.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does SO have fails to deliver?
The SEC's latest file shows 5,418 SO shares failed to deliver at settlement 2026-08-07. Fails are reported per settlement date and published twice a month with a lag.
Are SO insiders buying or selling?
Insiders at SO reported 5 open-market sells worth $834K in the last 90 days and no open-market buys. Sells alone are a weak signal; insiders sell for tax, diversification and estate reasons all the time. Latest filing: Sena Peter P III (Chairman,President &amp; CEO, SNC) on 2026-09-03.
Who owns more than 5% of SO?
4 holders above 5% have filed on SO, all on Schedule 13G (passive). The largest reported stake is Vanguard Capital Management at 7.4% of the class (83,145,596 shares), filed 2026-04-30 for an event on 2026-03-31.
What did SO report last quarter?
In Q1 2026 (quarter ended 2026-03-31) SOUTHERN CO reported revenue of $8.40B, up 8.0% from the same quarter a year earlier, and net income of $1.36B (1.20 diluted EPS). In FY 2025 it generated $9.80B of operating cash flow and spent $3.02B on dividends.
Which funds hold SO?
16 of the 30 tracked managers held SO at their latest 13F, $761.7M in total at quarter-end prices. Citadel Advisors is the largest at $263.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 10 cut.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.