NASDAQ

Structure and operation

NASDAQ is primarily an electronic marketplace that matches buyers and sellers through a network of market participants and computer systems rather than a physical trading floor. Historically it functioned as a dealer market where multiple market makers posted prices; over time the exchange has incorporated sophisticated matching engines, order types, and regulation to support high-frequency and institutional trading. Its market model emphasizes speed, transparency of quotations, and electronic trade execution.

History and development

Founded in 1971 by the National Association of Securities Dealers (NASD), NASDAQ was the first exchange to use a computerized quotation system. That innovation helped modernize trading by making price information widely available and enabling faster execution. Over subsequent decades NASDAQ expanded internationally, developed benchmark indices, and reorganized into Nasdaq, Inc., a company that owns and operates exchanges and financial technology services.

Indices, listings and significance

Two of the best-known benchmarks tied to the exchange are the NASDAQ Composite and the NASDAQ-100. These indices track large segments of NASDAQ-listed stocks and are widely used to gauge the performance of technology and growth sectors. NASDAQ lists companies of varying size — from smaller growth firms to some of the world’s largest corporations — and serves as an important venue for initial public offerings and secondary market trading.

Notable distinctions and uses

• Often associated with technology and innovation-oriented listings.
• Operates as a global electronic marketplace with extensive market-data services.
• Provides a range of trading and listing services used by issuers, brokers, and investors.

As a dominant electronic exchange, NASDAQ has influenced modern securities trading through automation, competitive market making, and index creation. Its symbols and indices are frequently cited by investors and the financial press as barometers of market trends and sector performance.