Availability
If some time ago currency transactions were the prerogative of the largest banks, in recent years, due to the emergence and development of electronic trading systems, currency transactions became available to individuals.
Liquidity
In the foreign exchange market, huge financial resources are being used, which makes it possible to open / close positions of almost unlimited volume at the current market quotation.
Cost
Unlike other markets, Forex / Forex does not have any commission costs other than the natural market difference between the purchase price of a currency instrument (ask) and its bid price.