AAOI vs SF Comparison

Applied Optoelectronics Inc is a provider of fiber-optic networking products, for four networking end-markets; internet data center, CATV, telecom, and FTTH. The Company designs and manufactures a wide range of optical communications products at varying levels of integration, from components, subassemblies, and modules to meet turn-key equipment. Through direct sales personnel, and manufacturing teams in the United States, China, and Taiwan, the company coordinates with customers to determine product design, qualifications, and performance. The Company has manufacturing and research and development facilities located in the U.S., Taiwan, and China.

Stifel Financial is a diversified financial-services provider that generates revenue from wealth management, investment banking, and lending. The firm was founded in 1890 as a St. Louis-based full-service brokerage but has been transformed under CEO Ronald Kruszewski through a slew of acquisitions into a globally competitive wealth manager, investment bank, and retail and institutional brokerage. The firm generated $5.5 billion in revenue in 2025, with roughly two-thirds derived from wealth management and one-third derived from trading and investment banking.