"Risk" in any field there, which did not exist "risk" areas of investment or speculation. We describe the risks, mostly using the concept of "relative risk". Plus everyone risk awareness, risk tolerance is different, there is the performance of a variety of risks. Risk can not be in the "investment" or "speculative" eliminated, only to take a variety of ways to "limit" risk, the risk of limited technology, the risk control within their acceptable range. Domestic stock market experience, we can feel that you spend 10,000 yuan, two days short fight, the maximum benefit is 10 percent, and the risk you take, you may be going to a loss of 5%. Assuming the maximum of your stoploss is 5% of the words. However, if the foreign exchange margin trading, we are still setting up strict stop-loss principle, we calculated 100 times leverage, you invest 10,000 dollars is 5% maximum stop-loss, but the benefits could be 10% within 2 days, it may be 100 %, and may even be 500%. In other words, the same bear 5% of the limited risk, profit expectations we have obtained is completely different. Amplification effect of margin and profit expectations not enlarge when the risk of simultaneous amplification. Of course, this is under the conditions set strict risk control, but it is really not easy to do. Need to continue to experience, but if you can not even strict risk control awareness are not, and that the stock is doing good.