Foreign exchange (forex) is a decentralized global market where currencies trade 24/5. It is the largest market by volume at over $5 trillion daily. Forex involves speculating on currency pairs by buying one currency and selling another. For example, buying the EUR/USD pair if expecting the euro to rise against the dollar. Profits are made if the currency is later sold higher than it was bought. Technical analysis tools help traders analyze trends and make trading decisions. Forex leverage allows traders to control large positions with relatively small amounts of capital, but also increases risk.