Alliant Energy Corp last reported quarterly results on Oct 30, 2026, for Q3 FY2026 (the quarter ended Sep 30, 2026): revenue of $1.3 billion (+6.2% year over year) and diluted EPS of $1.52. It usually reports 30–51 days after a quarter ends. Based on that pattern, the next release is estimated for around Feb 19, 2027.
Results for Q4 FY2026, the quarter ending around Dec 31, 2026. Expected on a Friday. Based on last year's release for the same quarter on Feb 20, 2026. This is an estimate, not a date the company has announced.
Release dates are when the company filed its earnings announcement with the SEC (Form 8-K, Item 2.02); select a date to open the filing. It usually reports 30–51 days after a quarter ends. Figures are USD in millions, except EPS. The colored percent is the change from the same quarter a year earlier. Until a quarter's 10-Q or 10-K figures reach the SEC's data, they come from the earnings press release, and are shown only when its year-ago numbers match the filed ones. A dash means the figure could not be confirmed yet.
| Released | Quarter | Revenue | Net income | Diluted EPS |
|---|---|---|---|---|
|
Oct 30, 2026
30 days after quarter end
From press release
|
Q3 FY2026
ended Sep 30, 2026
|
1,285
+6.2%
|
398
+41.6%
|
1.52
+39.4%
|
|
Jul 31, 2026
31 days after quarter end
From press release
|
Q2 FY2026
ended Jun 30, 2026
|
971
+1.0%
|
170
-2.3%
|
0.65
-4.4%
|
|
May 1, 2026
31 days after quarter end
|
Q1 FY2026
ended Mar 31, 2026
|
1,184
+5.0%
|
224
+5.2%
|
0.87
+4.8%
|
|
Feb 20, 2026
51 days after quarter end
|
Q4 FY2025
ended Dec 31, 2025
|
1,064
+9.0%
|
142
-5.3%
|
0.55
-5.9%
|
|
Nov 7, 2025
38 days after quarter end
|
Q3 FY2025
ended Sep 30, 2025
|
1,210
+11.9%
|
281
-4.7%
|
1.09
-5.2%
|
|
Aug 8, 2025
39 days after quarter end
|
Q2 FY2025
ended Jun 30, 2025
|
961
+7.5%
|
174
+100.0%
|
0.68
+100.0%
|
|
May 9, 2025
39 days after quarter end
|
Q1 FY2025
ended Mar 31, 2025
|
1,128
+9.4%
|
213
+34.8%
|
0.83
+33.9%
|
|
Feb 21, 2025
52 days after quarter end
|
Q4 FY2024
ended Dec 31, 2024
|
976
+1.6%
|
150
+24.0%
|
0.58
+23.4%
|
Company profile
- Industry
- Electric & Other Services Combined (SIC 4931)
- Listed as
- LNT (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- WI
- Headquarters
- Madison, WI
- SEC filer status
- Large accelerated filer
- SEC CIK
- 352541
- Former names
- ALLIANT ENERGY CORP (until Oct 30, 2026); INTERSTATE ENERGY CORP (until May 13, 1999); WPL HOLDINGS INC (until Feb 23, 1998)
Other Electric & Other Services Combined companies
- Duke Energy CORP DUK
- Xcel Energy Inc XEL
- Exelon Corp EXC
- Consolidated Edison Inc ED
- PG&E Corp PCG
- Wec Energy Group, Inc. WEC
- Public Service Enterprise Group Inc PEG
- Ameren Corp AEE
Source: SEC EDGAR filings. This is company-reported data, not investment advice.