With a market cap of $17.7 billion, NiSource Inc. (NI) is a leading regulated utility company providing natural gas (NGH25) and electric services to millions of customers across the Midwest and Northeast United States. Headquartered in Merrillville, Indiana, NiSource focuses on safe, reliable, and sustainable energy solutions, delivering its services through regulated subsidiaries while investing in infrastructure modernization and clean energy initiatives to support long-term growth.
Shares of NiSource have outperformed the broader market over the past 52 weeks. NI has risen 51.2% over this time frame, while the broader S&P 500 Index ($SPX) has rallied 20.6%. In 2025, NI has edged up 3.2%, compared to SPX’s 2.5% gain on a YTD basis.
