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Exchanges around the world

A stock exchange is a regulated marketplace where buyers and sellers meet through electronic systems to trade securities. What might look like a simple meeting point—a place to buy and sell—is actually a complex institution with specific rules, listing standards, trading protocols, and surveillance systems. Exchanges are not all identical. The New York Stock Exchange and NASDAQ operate differently from each other, and both operate differently from exchanges in London, Tokyo, Hong Kong, or Mumbai. Yet all serve the same core function: facilitating price discovery and capital allocation through regulated order matching.

The structure of an exchange reveals its history, regulation, and business model. The NYSE evolved from a 1792 buttonwood agreement on Wall Street and maintains a hybrid trading model with some in-person trading despite being primarily electronic. NASDAQ was born as an electronic system in the 1970s and has remained pure electronic order matching. The London Stock Exchange traces back centuries to coffee houses and maintains influence across European and African markets. Tokyo's exchange manages Japan's capital, while Hong Kong's exchange serves as China's primary window for international capital. Each exchange has carved out a market structure that reflects the regulatory environment, investor base, and competitive dynamics of its region.

Despite their differences, major exchanges worldwide share fundamental mechanics. Each maintains an order book—a system that ranks buy orders and sell orders by price and time. Each runs a matching engine that pairs buyers and sellers automatically. Each enforces listing standards that determine what companies can trade there. Each publishes real-time market data and maintains surveillance for manipulation. The competitive landscape has shifted with technology: electronic trading has erased the advantage of physical location, alternative trading systems have fragmented volume, and regulatory changes have harmonized many rules across borders. Yet each exchange remains fiercely competitive on speed, liquidity, and the services it provides to member firms and listed companies.

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