CMS Energy Corporation (CMS), headquartered in Jackson, Michigan, operates as an energy company that provides electricity and natural gas to its customers. Valued at $22.3 billion by market cap, the company also invests in and operates non-utility power generation plants in the U.S. and abroad.
Shares of this leading energy company have underperformed the broader market over the past year. CMS has declined 1.2% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 20.1%. In 2026, CMS stock is up 2.1%, compared to the SPX’s 13.1% rise on a YTD basis.