The futures market is margin trading, but it is wrong for you to say that you pay N 100, because the risk monitoring of futures companies is strict now, and there is a strict risk trial system. If your risk is higher than 200%, the futures company will inform you to close your position. If you don't close your position, the futures company will force you to close your position when your floating interest rate is around 0, so all the money in your futures company account is gone, but you don't need to add any money recently. If the supervision of the futures company is not in place and it is forced to close the position, it is his problem, and you can also refuse to add margin.

Options can only be exercised once, but according to the different exercise dates, they can be divided into several types. One is that they can only be exercised on the day of exercise. Now China's warrants are a kind of stock options, and the other is exercised at any time before the exercise date. Selling rights is different from buying income, which is precisely the advantage of options. The return on selling options is fixed, with only a premium, while the return on buying options is theoretically infinite if the direction is correct.

In the options market, it is usually large institutions or spot manufacturers (such as Cao's fiasco in Singapore) or speculators. Speculators usually buy options to hedge before exercising, so they will not exercise.