OTC stock option is a financial derivative traded outside the Shanghai and Shenzhen stock exchanges. At present, individual investors can't open an account directly, but can only participate in it through a third-party institution, or set up their own institutional company, so they need to meet certain conditions to become an institution.

I. Institutional qualification shall meet the following conditions:

1. The net assets at the end of last year shall not be less than RMB 50 million.

2. Have more than 3 years investment experience in securities/funds/futures/foreign exchange.

3. The financial capital at the end of last year shall not be less than 20 million yuan.

Of course, OTC options are mainly one-to-one transactions, and the participants are mainly buyers, sellers and brokers, and there are also cases where only buyers and sellers appear. Because of the low transparency of market transactions and high requirements for professional knowledge, investment banks or institutional investors generally actively participate. Small and medium-sized individual investors can participate through institutions if they have operational experience in a stock.