What does option trading margin mean?

margin is simply to leverage the purchased products, that is, you can buy larger contracts with a small amount of money. In option trading, the buyer pays a royalty to the seller, and the buyer has the right but no obligation, so the buyer does not need to pay a deposit except the royalty. For the seller, after obtaining the buyer's royalty, he has only obligations but no rights. Therefore, he needs to pay a deposit to ensure that the option contract will be fulfilled when the buyer exercises the option.

At present, the stock options listed in China are: SSE 5ETF option (with 5etf as the target), CSI 3 index option (with CSI 3 index as the target) and CSI 3etf option (with Huatai Borui CSI 3 as the target for SSE and Jiashi CSI 3 as the target for Shenzhen Stock Exchange).

There are commodity options, and now there are commodity options in China, such as Shanghai Futures Exchange (copper and rubber options), Dalian Commodity Exchange (iron ore and soybean meal options), Zhengzhou Commodity Exchange (cotton and sugar options) and Shanghai International Energy Exchange Center (natural gas options).