Its is also know as public market or equity market which is used for trading of company stocks, on other words it can be said that its a market for the trading of publicly held company stocks or shares and associated financial instruments which includes stock options, convertibles and stock index futures. Derivative of company stock is a agreed price, as these are securities listed on a stock exchange as well as those only traded privately.
The estimated size of this market is approx $480 trillion, which is 12 times the size of entire world economy. The stock market in Europe includes the London Stock Exchange, Paris Bourse, and Deutsche Borse. As well as the United State includes the trading of all securities which all are listed on the NASDAQ, NYSE, and Amex also the regional exchanges