Option fee is the fee that the buyer of the option must pay to the seller in order to obtain the rights conferred by the option contract. Because the option fee is the highest loss that the market price is unfavorable to the buyer, it is also called insurance premium.

At present, the minimum reporting unit of SSE 50ETF options listed on SSE is 1 or its integer multiple, and the minimum quotation unit is 0.000 1 yuan. The option fee, that is, the market price of the option contract, is determined by both the buyer and the seller.