Open outcry
Overview
 
Open outcry is the name of a method of communication between professionals on a stock exchange
Stock exchange
A stock exchange is an entity that provides services for stock brokers and traders to trade stocks, bonds, and other securities. Stock exchanges also provide facilities for issue and redemption of securities and other financial instruments, and capital events including the payment of income and...

 or futures exchange
Futures exchange
A futures exchange or futures market is a central financial exchange where people can trade standardized futures contracts; that is, a contract to buy specific quantities of a commodity or financial instrument at a specified price with delivery set at a specified time in the future. These types of...

. It involves shouting and the use of hand signals to transfer information primarily about buy and sell orders. The part of the trading floor where this takes place is called a pit.

Examples of markets which use this system in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 are the New York Mercantile Exchange
New York Mercantile Exchange
The New York Mercantile Exchange is the world's largest physical commodity futures exchange. It is located at One North End Avenue in the World Financial Center in the Battery Park City section of Manhattan, New York City...

, the Chicago Mercantile Exchange
Chicago Mercantile Exchange
The Chicago Mercantile Exchange is an American financial and commodity derivative exchange based in Chicago. The CME was founded in 1898 as the Chicago Butter and Egg Board. Originally, the exchange was a non-profit organization...

, the Chicago Board of Trade
Chicago Board of Trade
The Chicago Board of Trade , established in 1848, is the world's oldest futures and options exchange. More than 50 different options and futures contracts are traded by over 3,600 CBOT members through open outcry and eTrading. Volumes at the exchange in 2003 were a record breaking 454 million...

, and the Chicago Board Options Exchange
Chicago Board Options Exchange
The Chicago Board Options Exchange , located at 400 South LaSalle Street in Chicago, is the largest U.S. options exchange with annual trading volume that hovered around one billion contracts at the end of 2007...

. In the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

, the London Metal Exchange
London Metal Exchange
The London Metal Exchange is the futures exchange with the world's largest market in options, and futures contracts on base and other metals. As the LME offers contracts with daily expiry dates of up to three months from trade date, along with longer-dated contracts up to 123 months, it also...

 still makes use of open outcry.

The open outcry system is being replaced by electronic trading
Electronic trading
Electronic trading, sometimes called etrading, is a method of trading securities , foreign exchange or financial derivatives electronically...

 systems (such as CATS
CATS (trading system)
CATS is an automated exchange system developed for the Toronto Stock Exchange in 1977. CATS was one of the first technologies allowing for a full automation of the price-setting process in a stock exchange. This technology was implemented in several other stock exchanges in the 1980s...

 and Globex).
 
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