Call option, also known as call option, call option, call option, call option, deferred call option or "buy", means that the buyer of the option has the right to buy a certain amount of the subject matter at the exercise price within the validity period of the option contract. A call option is a contract that gives the contract holder (that is, the buyer) the right to buy a specific number of specific trading objects from the opponent at an agreed price.

Put option means that the option buyer has the right to sell goods or futures to the option seller at a certain price within a specified time, but does not undertake the obligation of selling. Put option is also called put option, put option and put option. In the transaction of put options, investors who buy put options are optimistic that the price will fall, so they buy put options; The seller of a put option expects the price to rise or not.

The essence of call option:

The exercise net income of the call option is called the maturity value of the call option, which is equal to the difference between the underlying asset price and the exercise price.

The profit and loss of call option refers to the surplus after deducting the option fee (option price) from the maturity value of call option.

The essence of put option;

The exercise net income of the put option is called the maturity value of the put option, which is equal to the difference between the exercise price and the underlying asset price.

The profit and loss of put option refers to the surplus after deducting the option fee from the maturity value of put option.

The difference between the two:

The party selling the call option gets a premium and bears unlimited risks (uncontrollable risks);

The "put option" party pays the premium, but only bears a limited risk (if the price rises, the right cannot be exercised, and only the premium is lost).