Foreign exchange trading stories gives some traders the data that they have to make a lot of money with day trading or scalping techiques but for others it just seems to lead to a big wreck. take a look at your broker’s T&Cs if you need to trade around reports announcements. Some will instantly close your currency trades at times of high volatility. Many brokers will increase the spread at these times and you may not be told by how much. The higher spread can be anywhere up to five times the normal spread for that currency pair. Slippage takes place when you don’t get the price that you saw on your screen. It is more common with some brokers than others because it is dependent on their enterprize model and whether they must cover the danger represented by your trade. With some market makers you can experience major slippage even in relatively stable times. Round the time of a foreign exchange trading news release it is even more likely as the price can change in the split 2nd between you seeing it on screen and clicking a button. This will mean that a system that worked well on back tests has totally different ends up in real time.