PAYX vs ARGX Comparison

Paychex is a technology company providing human capital management solutions, enabling clients to better implement payroll, talent, time, tax, and benefits administration. It has a diverse set of product offerings addressing client needs. Aside from its traditional cloud-based payroll and HCM software offering, which accounts for close to half of total revenue, the company provides outsourcing options. Paychex's administrative service organization and professional employer organization accounts generate over 40% of sales. The balance of revenue is generated through retirement services, insurance solutions, and other products. In fiscal 2025, the company had 800,000 clients and almost 2.5 million worksite employees across its ASO and PEO.

Argenx is a Dutch biopharmaceutical company focused on developing antibody-based therapies for rare autoimmune diseases. The company's lead product, Vyvgart (efgartigimod), was approved by the FDA in December 2021 for the treatment of generalized myasthenia gravis (gMG). In 2022, Argenx also received FDA approval for Vyvgart Hytrulo, a subcutaneous formulation of Vyvgart, offering a more convenient option compared with Vyvgart's intravenous administration. In 2024, the FDA approved Vyvgart Hytrulo for Chronic Inflammatory Demyelinating Polyneuropathy, a rare immune-mediated neuromuscular disorder of the peripheral nervous system. Argenx is focused on innovation and developing its pipeline for treatments such as primary immune thrombocytopenia, thyroid eye disease, and Sjogren's Disease.