For example, today Euro is worth 1.2345 US Dollars. In all his wisdom, a trader believes that it will increase in value in the next 24 hours. The trader places a BUY order today and waits. The next day Euro is worth 1.2395 US Dollars and the trader closes, securing a 50 pip profit. How much cash that is, depends on the volume of money the trader invested in this particular trade. Could be 50c, could be 50k.