PE Ratio: 21.47

Basis: FMP quote price / unrounded diluted EPS from four consecutive issuer fiscal quarters. Source: stored company filings and market data; unavailable inputs remain N/A.

Is the P/E ratio high or low?

The P/E ratio of 21.47 is in line with its 5-year average of 21.26, around the middle of its 5-year range (17.05–25.42).

As of 2026-09-09T20:00:01.000Z. 1.91% below its 12-month average of 21.89.

PE Ratio (21.47) = Close Price ($67.86) / Diluted TTM EPS ($3.16)

LNT PE Ratio Metrics

P/E vs. its own history

At 21.5, P/E is above its 20-year median — higher than 65% of readings in its 20-year history.

P/E Comparison

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for Alliant Energy Corporation (LNT)?

The P/E ratio for LNT stock is 21.47.

Is Alliant Energy Corporation's P/E ratio high or low?

The P/E ratio of 21.47 is in line with its 5-year average of 21.26, around the middle of its 5-year range (17.05–25.42).

What is the TTM average P/E ratio for Alliant Energy Corporation (LNT)?

The TTM average P/E ratio for LNT stock is 21.89.

What is the 3Y average P/E ratio for Alliant Energy Corporation (LNT)?

The 3Y average P/E ratio for LNT stock is 21.18.

What is the 5Y average P/E ratio for Alliant Energy Corporation (LNT)?

The 5Y average P/E ratio for LNT stock is 21.26.

What is the 10Y average P/E ratio for Alliant Energy Corporation (LNT)?

The 10Y average P/E ratio for LNT stock is 21.71.

What is the 15Y average P/E ratio for Alliant Energy Corporation (LNT)?

The 15Y average P/E ratio for LNT stock is 20.25.

What is the 20Y average P/E ratio for Alliant Energy Corporation (LNT)?

The 20Y average P/E ratio for LNT stock is 18.75.

Showing the most recent 260 of 5,030 data points. The chart above shows the full history.

Related Metrics