Last 12 Month - EUR/USD

There are plenty of Forex market brokers. Consequently, they need to be supervised, therefore you will need to check whether a particular company is registered in CFTC KNF, FSA, CySEC, SEC, or is a member of NFA.
The information is available on this website:
http://www.nfa.futures.org/basicnet/
Before you choose a broker, check:
-    what platforms he works on
-    what the entrance costs are
-    whether the spread is fixed or variable

Starting this subject it is necessary to introduce the notions of investment size on the Forex market. The basic investment unit is 1 lot. It is fixed value of 100000 units of the base currency. There are also minilots, which equals to 0,1 lot =10000 units of base currency. Apart from it, we have microlots and they are equal to 0,01lot = 1000 units of base currency.
An example: let me count how much 1 lot is worth for my pair, which is GBP/JPY.