1, and the exercise time is 9: 15-9: 25, 9: 30-1:30,13: 00-15: 30;
2. If you are the buyer of the call option, you must ensure that there is cash in your account corresponding to the contract unit amount to be declared when you initiate the exercise declaration, so that you can successfully exercise.
3. If you are the buyer of the put option, you can exercise successfully only if you ensure that the underlying securities with the total number of contract units to be declared are held in your account when you start the exercise declaration.