Two countries trade with different currencies and forex comes into play when they need this kind of transaction is carried out. But for this there is a need for a fixed rate. Here is where forex fixing comes into the scene. It is basically a fixed exchange rate that is fixed daily. This task is done by the national bank of respective countries. The central banks use this tool to analyze the behavior of the currencies. It is basically a state of equilibrium in the forex market. It is an obvious fact that if central bank intervenes in a certain business transaction, it stabilizes the currency.