A group of NY brokers formally establish the New York Stock and Exchange Board, an organization that later will be renamed the NewYork Stock Exchange (N.Y.S.E.). formalized and established its first quarters in a rented room at 40 Wall St. The exchange grew into the largest in the world of companies listed with a capitalization of over $30 trillion. Technology changed as inventions such as the telegraph, stock ticker, and computers transformed stock trading from the physical exchange of documents between specialist brokers on the trading floor to an electronic platform.