With a market cap of $15.5 billion, Alliant Energy Corporation (LNT) is a Wisconsin-based public utility holding company that provides regulated electricity and natural gas services to customers in the Midwest. Through its two primary subsidiaries, Interstate Power and Light Company (IPL) in Iowa and Wisconsin Power and Light Company (WPL) in Wisconsin, Alliant Energy serves residential, commercial, and industrial customers.
Shares of this utility holding company have surpassed the broader market over the past year. LNT has gained 25.1% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 20.5%. However, in 2025, LNT’s stock rose 2.5%, compared to SPX’s 2.9% rise on a YTD basis.
