NDAQ vs PAYX Comparison

Founded in 1971, Nasdaq is primarily known for its equity exchange, but in addition to its trading business (about 22.5% of sales), the company sells market and financial data to investors, offers Nasdaq-branded indexes, and lists companies through its capital access segment (42.5%). Nasdaq's newest segment, financial technology, was primarily constructed through the acquisitions of Verafin and Adenza and has expanded the company into capital management, financial crime, and regulatory compliance software (35%) as it seeks to become a diversified technology company.

Paychex is a cloud-based human capital management provider offering payroll, compliance, talent management, benefits administration, and retirement services. The firm also provides HR outsourcing services, including professional employer organization, or PEO, offerings, enabling clients to reduce HR overhead. Paychex primarily targets small and midsize businesses, although its acquisition of Paycor in 2025 signals the firm's aspirations to expand into the midmarket segment, serving firms with more than 100 employees. As of fiscal 2026, Paychex has approximately 800,000 clients and manages payroll for one in 11 workers in the United States.