Market size and participants in forex market The foreign exchange market is a global financial market where one currency is exchanged for another.Forex is considered a decentralized or Over the Counter (OTC) market. The forex market is the largest financial market in the world with an average daily turnover of more than $ 5 trillion. The main purpose of the forex markets is to facilitate international trade and investment.Currenciesthat has the highest transaction volume include US Dollar, Euro, Great British pound and Japanese Yen. Unlike stocks there are big numbers of participants in the forex markets comprising of Commercial companies, central banks, Hedge funds as speculators, Investment management firms, Retail Foreign exchange traders, on bank foreign exchange companies, Money transfer/remittance companies. Commercial companies are one of the main participants in forex online trading. These companies do actively trade currencies with an intention of growing their overall wealth and to create value for the shareholders who invest in them. Some of the commercial companies can be named as Deutsche Bank, UBS, Citigrioup, HSBC, Barclays and so on. Central Banks play an important role in the foreign exchange market. They try to control the money supply, inflation and interest rates by trading huge volume of currencies. They use their often substantial foreign reserves to stabilize the market. The central banks are able to stabilize the markets because Central banks do not go Bankrupt, if they make large losses. Some of the players are Reserve Bank of Australia, European Central Bank, Bank of Canada and so on. Approximately 90% of the foreign exchange transactions are speculative. Hedge funds have gained a reputation for aggressive currency speculation. Investment management firms who typically manage large accounts on behalf of customers such as pension funds use the foreign exchange markets to facilitate transactions in foreign securities. While the number of this type of specialist firms is quite small, many have a large value of assets under management and can generate large trades. Individual Retail speculative traders constitute a growing segment of this market. They participate in the foreign exchange markets through brokers or banks. There are two main types of forex brokers offering speculative currency trading namely brokers and market makers. Brokers serve as an agent of the customer by giving the best price in the market for a retail order. Market makers in simple terms quote a price they are willing to deal at. Non-Bank Foreign exchange companies offers currency exchange and international payments to private individuals and companies. They are also known as foreign exchange brokers but they donâ€™t offer speculative trading but offer currency exchange with payments. Money transfer companies perform high volume of the markets generally by economic migrants to their home country. These transfer companies provides low value foreign exchange services for travellers. They are typically located at airports and stations and allow physical notes to be exchanged from one currency to another.