2. The choice of the seller;

3. Double choice.

The above are the three main types of options trading. Option trading has two characteristics: special profit and loss structure and trading risk. It is a right transaction, and the buyer has the right to buy and sell the subject matter within a certain period of time after paying a certain royalty.

What's the difference between option trading and futures trading?

1. Difference between rights and obligations: In futures, the rights and obligations of both parties are the same. Unless there is a reverse contract offset, the rights of options exist in the buyer, and the seller has no rights, only the obligation to buy and sell;

2. Standardization is different: all futures contracts are standardized, while some option contracts are not standardized;

3. Different profit and loss risks: in futures, the rights and obligations of both parties are equal, so the profit and loss risks borne by both parties are unlimited, while in option trading, only the seller will bear unlimited losses and limited profit risks, while the buyer is the opposite;

4. Different margins: both parties in futures trading need to pay a certain margin, while the buyer in option trading does not need to pay a margin, and the seller needs to pay a margin;

5. The expiration time is different from the exercise date: the futures contract has a time limit, and when the corresponding time limit is reached, the futures will reach the expiration time. The time of the option is the exercise period stipulated in the contract;

6. Hedging: In the process of futures hedging, when the unfavorable risks are transferred, the risks beneficial to investors will also be transferred, while when options are hedged, only the unfavorable risks will be transferred.