The National Association of Securities Dealers (NASD) launched NASDAQ to automate price quotations for over-the-counter (OTC) stocks. At the start, it displayed quotes on screens, but most trades were still negotiated by phone between dealers. This launch helped set the direction toward more transparent, technology-driven markets.
NASDAQ introduced the National Market System (often called “NMS”) to set higher standards for some actively traded OTC stocks. NMS required more real-time reporting and provided more complete market information than the broader OTC market. This was an early step toward separating higher-quality listings from less regulated trading tiers.
Nasdaq introduced the Nasdaq-100 Index to track 100 of the largest non-financial companies listed on the exchange. The index helped investors and the media follow a focused slice of large-cap growth companies. Over time, it became the basis for major index products and derivatives.
Members of the American Stock Exchange (Amex) voted to approve a merger agreement with the NASD, the organization that operated Nasdaq. The plan aimed to combine Nasdaq’s technology resources with Amex’s auction-style market model. It reflected growing pressure on exchanges to modernize trading systems and compete more effectively.
Nasdaq’s MarketSite opened in Times Square as a public-facing venue for market news, company events, and broadcast studios. It helped make the exchange’s brand more visible to investors and listed companies. The site later became a familiar location for bell-ringing ceremonies and financial media coverage.
The Nasdaq Composite index closed at 5,048.62, marking the high point of the dot-com era. The peak highlighted how strongly investor expectations had concentrated in technology and internet-related stocks. The decline that followed became a major lesson about speculation and market risk.
Nasdaq’s shares began trading after the company went public, marking a shift toward a more corporate, shareholder-owned exchange model. This change supported investments in technology and expansion strategies. It also reflected broader trends of exchange demutualization, where member-owned exchanges became for-profit companies.
Nasdaq announced it would acquire Instinet Group and keep its INET electronic communications network (ECN), a high-speed platform for matching trades. The deal aimed to strengthen Nasdaq’s trading technology as competition increased among electronic markets. It also positioned Nasdaq for a market structure shaped by modern “best execution” expectations.
The U.S. Securities and Exchange Commission approved Nasdaq’s application to become a registered national securities exchange. This moved Nasdaq from operating under the NASD’s supervision to being an exchange and self-regulatory organization in its own right (with some regulatory functions handled by agreement). The change put Nasdaq on a more equal regulatory footing with other major exchanges.
FINRA became effective after the consolidation of NASD and key NYSE member-regulation functions. This reorganization reshaped how U.S. broker-dealers are overseen, aiming to reduce duplicative rules and streamline supervision. It also mattered for Nasdaq because major market entities relied on FINRA for significant regulatory services under SEC oversight.
Nasdaq completed its acquisition of OMX, which operated exchanges in Nordic and Baltic markets and sold market-technology systems. The deal created a larger global exchange group (later known as NASDAQ OMX) and expanded Nasdaq’s reach beyond U.S. equities. It also reinforced Nasdaq’s identity as both an exchange operator and a financial-technology provider.
Nasdaq completed its acquisition of the Philadelphia Stock Exchange (PHLX), significantly expanding Nasdaq’s U.S. options business. Options are contracts whose value is tied to an underlying asset, and they are widely used for hedging (risk reduction) and speculation. The acquisition strengthened Nasdaq’s position in multi-asset trading beyond stock listings.
Nasdaq completed its acquisition of Adenza, a provider of software used for risk management and regulatory reporting. The deal highlighted Nasdaq’s long-term shift toward being not only a trading venue, but also a major supplier of “market infrastructure” technology for financial institutions. It marked a clear endpoint in this timeline: Nasdaq’s evolution from a quote screen in 1971 to a broader financial-technology and market-operations company.
NASDAQ Stock Market (1971–present)