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When you trade money on forex, you lose the difference between the bid and ask (the spread). Between USD and EUR, the spread is tight, and banks use this to pr
by mynameishere 14y ago
When you trade money on forex, you lose the difference between the bid and ask (the spread). Between USD and EUR, the spread is tight, and banks use this to profit when you change money there, as most people don't have forex accounts. This is probably how bitcoin operations make money, as the spread (I'm guessing) is gigantic and volatile.