(1) spot trading. Spot trading is the most common way of speculation.

(2) Interspersed with arbitrage. Arbitrage for speculation begins with address arbitrage, that is, before financial malls are prosperous, communication means are not complete, and global foreign exchange malls are not integrated, the exchange rate levels of different financial centers may be inconsistent, allowing speculators to buy some money in one place and throw it out in another place to make a profit. This is two-point arbitrage, and there are some complicated triangular arbitrage.

(3) Speculation by means of silver trading in other currencies. With the further development of foreign exchange malls and the continuous presentation of financial derivatives, the scale of foreign currency speculation is more and more extensive.

(4) margin trading. When speculators speculate, the shortage of funds is a common problem, while margin financing and securities lending provide speculators with an opportunity to make big transactions with less funds.