Valued at $44.1 billion by market cap, IDEXX Laboratories, Inc. (IDXX) is a global veterinary diagnostics and animal healthcare technology company headquartered in Westbrook, Maine. The company develops diagnostic instruments, laboratory services, software, and testing solutions primarily for veterinarians, livestock producers, and water quality testing organizations.
Shares of this global leader in pet healthcare innovation have underperformed the broader market over the past year. IDXX has gained 10.8% over this time frame, while the broader S&P 500 Index ($SPX) has rallied 27.9%. In 2026, IDXX stock is down 17.3%, lagging behind SPX’s 9.2% rise on a YTD basis.