Edison International vs Alliant Energy
Prices at close . Model readings .
Edison International
$58.83+1.1%- Market value
- $22.71B
- P/E
- 5.2
- 1 year
- +7.4%
Alliant Energy
$69.37−0.96%- Market value
- $17.92B
- P/E
- 31.0
- 1 year
- +3.9%
Price change, with the S&P 500 as a benchmark
Percent change in each close since the start of the chosen range, for both companies and the S&P 500 (SPY). Daily closes over the last year, weekly before that and monthly before five years.
How the two compare
On the latest closes (28 Oct 2026), Edison International is the larger company by market value ($22.71B against $17.92B). Over the past year Edison International returned +7.4% and Alliant Energy +3.9%, while the S&P 500 returned +12.7%. The latest filed P/E is 5.2 for Edison International and 31.0 for Alliant Energy, and the operating margin 56% against 22.8%. Over the next 21 sessions the model expects −0.38% for Edison International, with a 40% chance of a rise, and −0.35% for Alliant Energy, with a 63% chance.
What the model expects
Expected returns and the chance of a rise from our forecasting models, and the long-run fair value against the price. Readings, not advice.
How the prices moved
Price change over each period, with the S&P 500 (SPY) for comparison.
What the market pays
Size and the multiples from the latest filed quarter. A P/E on losses reads n/m.
How much of revenue becomes profit
Margins and returns on capital from the latest filing; revenue, net income and earnings per share over the trailing twelve months.
How fast the business grew
Change against the same quarter a year earlier.
Balance sheet and quality scores
Leverage, liquidity and two published scores: Altman Z (below 1.8 the distress zone, above 3 the safe zone) and Piotroski F (0 to 9).
How the shares trade
Volatility, sensitivity to the market, the deepest fall, short interest and how closely the two move together.
Edison International or Alliant Energy: common questions
Which is larger by market value, Edison International or Alliant Energy?
Edison International, at $22.71B against $17.92B for Alliant Energy, on the latest closes (28 Oct 2026).
Which has the higher P/E ratio, Edison International or Alliant Energy?
Alliant Energy has the higher latest filed P/E, 31.0; Edison International's is 5.2. Filings: quarter to 30 Jun 2026.
How did Edison International and Alliant Energy move over the past year against the S&P 500?
Over the past year Edison International returned +7.4% and Alliant Energy +3.9%, while the S&P 500 returned +12.7%. Prices at close 28 Oct 2026.
What does the model expect for Edison International and Alliant Energy over the next month?
−0.38% for Edison International with a 40% chance of a rise, and −0.35% for Alliant Energy with a 63% chance, over the next 21 sessions. Model readings 28 Oct 2026. These are model readings, not advice.
How do the operating margins of Edison International and Alliant Energy compare?
The operating margin is 56% for Edison International and 22.8% for Alliant Energy, and the gross margin 56% against 86%. Filings: quarter to 30 Jun 2026.
Do Edison International and Alliant Energy shares move together?
Over the past year the correlation of their daily returns was 0.37 (loosely together); 1 means they always move together, 0 unrelated, −1 opposite. Prices at close 28 Oct 2026.
Model readings are research estimates, not investment advice. Prices: daily closes. Fundamentals: the latest SEC filings. Short interest: FINRA, settlement 30 Sep 2026. A dash means the figure is not in our data; it is never shown as zero. The model view follows a published rule: next month by the sign of the expected return, the long run positive at a fair value 10% or more above the price and negative at 10% or more below it.