Is Alliant Energy Corp. overvalued or undervalued?

As of 7 August 2025, the valuation grade for Alliant Energy Corp. has moved from expensive to fair. Based on the current metrics, the company appears to be fairly valued. Key ratios include a P/E ratio of 19, an EV to EBITDA of 14.50, and a PEG ratio of 0.99, which suggest that the stock is reasonably priced relative to its earnings growth potential.
In comparison to its peers, Alliant Energy Corp. has a P/E ratio of 19.19, which is lower than Entergy Corp. at 27.67 and DTE Energy Co. at 52.80, indicating a more attractive valuation relative to these companies. Additionally, FirstEnergy Corp. has a lower P/E at 16.53, further supporting the notion of fair valuation for Alliant. Over the past year, Alliant Energy's stock has returned 5.72%, significantly lagging behind the S&P 500's return of 17.14%, which may indicate that the stock is not currently favored by the market despite its fair valuation.