Founded in 1792 and located on Wall Street in Lower Manhattan, the New York Stock Exchange (NYSE) is the world’s largest stock exchange by market capitalization and the oldest active securities exchange in the United States.
Contents
- Wall Street Industry
- NYSE Listing Requirements
- Floor Trading at the NYSE
- Electronic Trading on the NYSE
- The American Dream: Retail Investing
- Security & Insider Trading Prevention
- Regulatory Framework & Oversight
Wall Street Industry
In the early 1700s—shortly after the U.S. Declaration of Independence—only two types of tradable securities existed in the country: U.S. government bonds and shares of the Bank of the United States, the nation’s first bank.
Market brokers, traders, and auctioneers bought and sold stocks and bonds in offices and cafés along Wall Street in southern Manhattan. With no fixed location or trading hours, buyers and sellers had to seek each other out—making transactions slow and inefficient.
Everything changed on May 17, 1792, when 24 Wall Street brokers signed an agreement to trade exclusively with one another. Known as the “Buttonwood Agreement,” it was signed under a buttonwood (plane) tree near Wall Street where brokers informally gathered. This pact laid the foundation for today’s New York Stock Exchange.
In 1971, the NYSE was incorporated as a not-for-profit organization. It is governed by a 26-member Board of Directors: the Chairman, the President, 12 public representatives, and 12 representatives from securities industry professionals.
The New York Stock Exchange is the global leader in equity markets. It hosts significantly more market capitalization than any other stock exchange.
NYSE Listing Requirements
The NYSE is the world’s largest stock exchange. Virtually every major U.S. company has completed an initial listing there.
Listing refers to the inclusion of a company’s shares in the exchange’s official quotation lists. An NYSE listing gives companies access to substantial capital resources.
More than 2,800 companies are listed on the NYSE—including approximately 450 foreign firms from 53 countries. These include long-established, financially stable enterprises known as “blue chips,” as well as fast-growing newer companies.
New companies enter the NYSE listing through an initial public offering (IPO). To qualify, they must meet stringent financial and legal requirements set by the exchange. Listed companies pay annual membership fees. Today, much of the NYSE’s listing growth comes from foreign issuers.
Floor Trading at the NYSE
First-time visitors to the NYSE trading floor are often struck by the intense activity involved in buying and selling stocks. The floor operates like a hive: market participants gather around quote boards, shouting orders and executing trades.
Professionals use modern technology to match buy and sell orders and determine share prices according to supply and demand. Two key roles facilitate trading in the physical trading floor: floor brokers and designated market makers (DMMs).
NYSE Floor Brokers
Floor brokers fall into two categories: those employed by brokerage firms and independent specialists. Both serve institutional clients only.
Individual investors trade on the NYSE indirectly—through registered brokerage firm representatives. These representatives act as “financial advisors” and must hold appropriate licenses, pass qualification exams, and be registered with both the NYSE and the U.S. Securities and Exchange Commission (SEC).
Investor orders are transmitted electronically from the brokerage’s headquarters to floor brokers via advanced communication and processing systems. Today, this occurs automatically over the internet—enabling high-speed execution.
NYSE Designated Market Makers (DMMs)
DMMs are professional market participants who collect all buy and sell orders for specific stocks. Each stock is assigned a dedicated DMM who acts as an auctioneer at a fixed location on the trading floor—the “trading post.” All brokers buying or selling that stock gather around the relevant post and verbally shout their orders; competitive bidding determines price.
The number of stocks handled by a single DMM depends on overall market activity. A digital display above each trading post shows real-time data for the associated stock.
About 95% of buy/sell orders are routed directly to the trading post—but these represent only ~65% of total volume. The remaining ~35% of volume comes from just 5% of orders placed by brokers physically present at the post, seeking the best possible price from the DMM.
DMMs perform four core functions:
- Auctioneer. At the start of each trading session, the DMM announces opening prices for each assigned stock based on supply/demand imbalance. Throughout the day, they aggregate buy and sell orders.
- Agent. DMMs execute orders received electronically and those submitted in person by floor brokers.
- Monitor. They ensure orderly trading and prevent excessive price volatility.
- Dealer. If buy orders vastly outnumber sell orders—or vice versa—the DMM may step in using proprietary capital or inventory to absorb imbalance, buying against the trend until stability returns.
Electronic Trading on the NYSE
Electronic trading on exchanges like the NYSE follows this process:
Traders and investors use online platforms provided by their brokers to access real-time market data, analytical tools, and order-entry functionality. Investors submit buy or sell orders through these platforms. Common order types include:
- Market orders: executed immediately at the best available current price;
- Limit orders: executed only at the specified price or better;
- Stop orders: triggered when a specified price level is reached, then converted into market orders.
Orders are sent either to the broker’s internal system or directly to the exchange’s electronic matching engine. Specialized algorithms match orders based on price priority and time priority—a process called “order matching.”
Once a match is found, the order executes, and shares transfer from seller to buyer. The execution price becomes the stock’s latest known market price.
After execution, participants receive confirmation. Clearing organizations handle final settlement—ensuring secure transfer of securities and funds between buyer and seller. The entire process relies on sophisticated risk management and surveillance systems to uphold market integrity and protect against counterparty default.</p
FAQ
When was the NYSE founded and how did it begin?
The NYSE was founded on May 17, 1792, when 24 Wall Street brokers signed the Buttonwood Agreement under a buttonwood tree, establishing a formal framework for trading securities.
What role do Designated Market Makers (DMMs) play on the NYSE floor?
DMMs act as auctioneers, agents, monitors, and dealers for assigned stocks—facilitating price discovery, executing orders, ensuring orderly trading, and stepping in with proprietary capital to maintain liquidity and stability.
How does electronic trading work on the NYSE?
Investors submit orders via broker platforms; orders are routed to the NYSE’s electronic matching engine, where algorithms match them by price and time priority, execute trades, and relay confirmations—supported by clearing and surveillance systems.
