The trader must use a low risk in his operations to protect himself from the big movements of the price. Currencies are often affected by news of a different nature. For this reason, the price can change at any time and the magnitude of the change is unpredictable. Nope it doesn't happen in the FOREX. In the FOREX you've to invest first i.e. you've to deposit first and then you can trade in the real account. SO you can not have the big loss that your deposit. however before investing One must get the clear idea of the FOREX Market and Losses involved in it.