Speculation refers to the trading behavior of taking advantage of the price difference in the market to profit from it according to the judgment of the market. Speculators can "short" or "short". The popular definition is: speculation is an investment opportunity (an investment behavior). If you don't have a chance, you won't enter the market, just like hunting. If you don't see your prey, you will never shoot. It is speculative for people to use the information they get daily to buy lottery tickets, stocks and other trading choices according to their own resources. The purpose of speculation is very direct-that is, to make profits from the price difference. But speculation is risky.

Speculation involves taking above-average risks in order to obtain expected returns. Whether it is profitable or not depends on whether the speculators are professionals who have been engaged in speculation for a long time. They often do a good job in risk management, such as stop loss and use various hedging techniques, including option trading, short selling, stop loss orders and futures contracts. It is different from investment in accepting risks. It differs from gambling in that the latter is random.