You will hear different views regarding forex from several scholar, there are opinions if forex is prohibited in Islam because they have speculating element, but another view state if forex is allowed in Islam, because this is required knowledge to become a trader, using technical analysis and not relying upon speculating luck. In my view forex is allowed because this is buying and selling or trading not gambling, but trading has risk, buyer, and seller must accept agreement the term condition of risk, if disagree, hence forex is not allowed for them.