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Westbrook, Maine-based IDEXX Laboratories, Inc. (IDXX) develops, manufactures, and distributes products for the companion animal veterinary, livestock, poultry, dairy, and water testing markets. Valued at $55.7 billion by market cap, the company also operates an international network of veterinary reference laboratories.
Shares of this global leader in pet healthcare innovation have notably outperformed the broader market over the past year. IDXX has gained 64.7% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 10.5%. In 2025, IDXX stock is up 66.7%, surpassing SPX’s 11.2% rise on a YTD basis.