ALLIANT ENERGY CORP (LNT): Results of Operations and Financial Condition
ALLIANT ENERGY CORP (LNT) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 Alliant Energy Corporation Corporate Headquarters 4902 North Biltmore Lane Madison, WI 53718-2148 www.alliantenergy.com News Release FOR IMMEDIATE RELEASE ALLIANT ENERGY ANNOUNCES SECOND QUARTER 2026 RESULTS • Second quarter GAAP earnings per share were $0.65 in 2026
How this was made
The 30-second read
Why it matters
Traders can update expectations for LNT’s 2026 earnings trajectory based on the reported Q2 EPS, the stated drivers (rate base, equity venture earnings, temperature-normalized sales), and the reaffirmed guidance range.
Market read
Company-specific earnings and guidance reaffirmation provide a direct input to valuation for a regulated utility, especially given the explicit EPS range and driver breakdown.
What to watch
The guidance assumptions exclude multiple potential items (regulatory charges/credits, tax apportionment changes, ATC return on equity changes), so downside risk could emerge if those assumptions shift.
ALLIANT ENERGY ANNOUNCES SECOND QUARTER 2026 RESULTS
Second quarter GAAP and non-GAAP EPS of $0.65 were below $0.68 in the second quarter of 2025, while Alliant Energy reaffirmed 2026 ongoing EPS guidance of $3.36 - $3.46 per diluted share and said results are trending in the upper half of that range.
Key metrics
as reported| Metric | Value | q/q | y/y |
|---|---|---|---|
| GAAP EPS, three months ended June 30GAAP | $0.65 | – | – |
| Non-GAAP EPS, three months ended June 30non-GAAP | $0.65 | – | – |
| GAAP EPS, six months ended June 30GAAP | $1.52 | – | – |
| Non-GAAP EPS, six months ended June 30non-GAAP | $1.47 | – | – |
| Interstate Power and Light Company higher revenue requirements per-share impactother | $0.09 per share | – | – |
| Wisconsin Power and Light Company higher revenue requirements per-share impactother | $0.09 per share | – | – |
| Estimated temperature impact on retail electric and gas sales, second quarter 2026other | decreased an estimated $0.03 per share | – | – |
| Estimated temperature impact on retail electric and gas sales, second quarter 2025other | increased an estimated $0.02 per share | – | – |
| Deferred tax asset remeasurement benefit, six months ended June 30, 2026non-GAAP | $0.05 per share benefit | – | – |
2026 outlook
- Tax rateConsolidated effective tax rate of (35%)
- NoteConsolidated ongoing EPS guidance of $3.36 - $3.46 per diluted share.
- NoteEarnings are currently trending in the upper half of the range.
- NoteExpected 60% load growth by 2031.
- NoteAbility of IPL and WPL to earn their authorized rates of return.
- NoteNormal temperatures in its utility service territories.
- NoteStable economy and resulting implications on utility sales.
- NoteExecution of capital expenditure plans, including achievement of targeted in-service dates.
- NoteExecution of cost controls and financing plans.
What drove it
- Higher revenue requirements from increasing rate base at Interstate Power and Light Company, including investments in generation and energy storage.
- Higher revenue requirements from increasing rate base at Wisconsin Power and Light Company, including investments in generation and energy storage.
- Higher equity earnings from corporate venture investments.
- Higher temperature-normalized retail electric and gas sales.
- Three data centers making significant construction progress.
- Meaningful progress on energy resource investments.
Concerns
- Higher other operating and maintenance expense primarily related to labor.
- Increased electric distribution and generation costs from planned maintenance activities and the addition of new energy resources.
- Higher financing and depreciation expenses.
- Estimated temperature impacts on retail electric and gas sales.
- Timing of income tax expense.
- The ability of potential large load growth customers to timely construct new facilities and achieve resulting higher system load demand by expected levels and timeframes.
- The impact of large load growth customers altering, delaying or cancelling planned facilities.
- The ability to complete construction of generation and energy storage projects by planned in-service dates, with expected earnings contributions and within regulator cost targets.
What to watch
- Whether IPL and WPL earn their authorized rates of return.
- Execution of capital expenditure plans and achievement of targeted in-service dates.
- Execution of cost controls and financing plans.
- Whether large customer load materializes as forecasted in 2026.
- Weather effects on utility sales volumes and operations.
- Further adjustments to deferred tax assets and liabilities from changes in forecasted state income tax apportionment and valuation allowances.
Analysis
Alliant Energy reported second-quarter 2026 GAAP EPS of $0.65, compared with $0.68 for the second quarter of 2025. Non-GAAP EPS was also $0.65, compared with $0.68 in the prior-year quarter. For the six months ended June 30, GAAP EPS was $1.52 compared with $1.50, while non-GAAP EPS was $1.47 compared with $1.50.
The company identified higher revenue requirements from increasing rate base at IPL and WPL as major second-quarter supports, contributing $0.09 per share at each utility. Those gains included investments in generation and energy storage. Higher equity earnings from corporate venture investments and higher temperature-normalized retail electric and gas sales were also cited as favorable factors.
Costs and timing items offset part of the operating benefits. Alliant cited higher other operating and maintenance expense related primarily to labor, increased distribution and generation costs from planned maintenance and new energy resources, higher financing and depreciation expenses, estimated temperature impacts, and income-tax timing. Retail electric and gas sales decreased an estimated $0.03 per share from temperature effects in the second quarter of 2026, compared with an estimated $0.02 per share increase in the second quarter of 2025. The six-month non-GAAP result excludes a $0.05 per share benefit from remeasurement of deferred tax assets associated with estimated state income-tax apportionment.
Management reaffirmed consolidated ongoing EPS guidance for 2026 of $3.36 - $3.46 per diluted share and stated that results are trending in the upper half of the range. The outlook depends on authorized returns at IPL and WPL, normal temperatures, a stable economy, execution of capital expenditures and in-service dates, cost controls, financing plans, and a consolidated effective tax rate of (35%).
Load growth and construction execution are central to the forward outlook. The company expects 60% load growth by 2031 and said large customer load is expected to materialize as forecasted in 2026. Three data centers are making significant construction progress, but the filing identifies risks around customers completing facilities on time, load materializing at expected levels, the potential for project delays or cancellations, regulatory approvals, and timely delivery of generation, storage, and transmission investments.
Management, verbatim
We delivered another solid quarter of operating and financial performance and our full-year forecasted results are currently trending in the upper half of our full-year ongoing earnings guidance range.
Lisa Barton, Alliant Energy President and CEO
With three data centers making significant construction progress, and meaningful progress on energy resource investments, we are positioning to accelerate earnings growth and enable significant economic development in the communities we serve; all while maintaining customer protections and reliability.
Lisa Barton, Alliant Energy President and CEO
Not in the filing
stated, not guessed- Total revenue and prior-year or prior-quarter total revenue.
- Segment revenue, segment revenue growth, and segment operating results.
- Gross profit and gross margin.
- Operating income and operating margin.
- Net income.
- Revenue guidance, gross-margin guidance, and operating-expense guidance.
- Operating cash flow and free cash flow.
- Capital expenditures.
- Dividends, share repurchases, and other capital-return amounts.
- Cash, debt, liquidity, and balance-sheet amounts.
- Prior-quarter comparisons for reported EPS metrics.
- Reported percentage changes for EPS metrics.
- Prior outlook section for comparison with actual reported results.
AlphaAI analysis generated from the company’s SEC earnings filing (Form 8-K Item 2.02, or Form 6-K for a foreign private issuer). Every figure was cross-checked against the filing text; consensus estimates, price targets and share-price reactions are not shown because they are not in the filing. AI-generated research, not investment advice.
Background
This is an SEC 8-K with an earnings release (Item 2.02) covering Alliant Energy’s second quarter 2026 results and reaffirmed full-year ongoing EPS guidance.
Ticker impact
Alliant Energy reported Q2 2026 GAAP EPS of $0.65 and reaffirmed 2026 ongoing EPS guidance of $3.36 to $3.46, trending upper half.
Moderate positive bias into the earnings call, with upside/downside driven by whether investors believe the upper-half trend is sustainable.
The filing provides fresh quarterly results and reiterates full-year EPS range, which can move utility earnings expectations even without a guidance raise. However, it does not include a new major regulatory or capital event beyond ongoing assumptions.
Market effects
Reinforces the earnings model for regulated utilities: rate base growth, authorized returns, and weather normalization remain the dominant drivers.
Signals Midwest utility earnings resilience assumptions tied to IPL and WPL rate recovery and load growth.
Limited, as the disclosure is company-specific and not a cross-market macro shock.
Counterpoint
Upper-half guidance trend may already be priced; investors could focus on weather and cost/O&M variability that can swing quarterly EPS.
Key entities
- issuerAlliant Energy Corporation
Parent company of Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL), reporting Q2 2026 results and reaffirming 2026 ongoing EPS guidance.
- executiveLisa Barton
President and CEO, quoted on Q2 performance and the full-year guidance trending in the upper half.
- executiveRobert Durian
Executive Vice President and CFO, scheduled to host the earnings call.
