The buying and selling of Company Shares , also Bonds & many other financial instruments such as Futures The New York Stock Exchanges provides an efficient method for buyers and sellers to trade shares of stock in companies registered for public trading. The exchange provides efficient price discovery via an auction environment designed to produce the fairest price for both parties. On the trading floor, the NYSE trades in a continuous auction format. Here, the human interaction and expert judgment as to order differentiates the NYSE from fully electronic markets. There is one specific location on the trading floor where each listed stock trades. Exchange members interested in buying and selling a particular stock on behalf of investors gather around the appropriate post where a specialist broker, who is employed by a NYSE member firm (that is, he/she is not an employee of the New York Stock Exchange), acts as an auctioneer in an open outcry auction market environment to bring buyers and sellers together and to manage the actual auction. They do on occasion (approximately 10% of the time) facilitate the trades by committing their own capital and as a matter of course disseminate information to the crowd that helps to bring buyers and sellers together.