Valued at $39.7 billion by market cap, Comfort Systems USA, Inc. (FIX) is a leading mechanical and electrical contracting company that designs, installs, and maintains HVAC, plumbing, piping, and building automation systems for commercial, industrial, and institutional facilities. Headquartered in Houston, Texas, the company delivers both large project installations and recurring maintenance services across complex end markets, including data centers, semiconductor fabs, healthcare, and manufacturing.
Shares of FIX have outperformed the broader market considerably over the past year. FIX has gained 247% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 11.7%. In 2026, FIX stock is up 47.2%, surpassing SPX’s marginal rise on a YTD basis.
