1, the ID card has expired. Just update it.

2. Failing to trade within the transfer time or on the same day.

3. The stock cannot be transferred until the second day after it is sold, or the funds are frozen by signing a trading agreement. It is recommended to call the account opening broker directly to ask the reason.

1. Securities is a general term for all kinds of economic rights and interests certificates, and also refers to specialized products. It is a legal document used to prove that the holder enjoys certain rights.

2. Securities mainly include capital security, currency securities and commodity securities. In a narrow sense, securities mainly refer to securities products in the securities market, including property market products such as stocks, debt market products such as bonds, and derivative market products such as stock futures, options and interest rate futures.

3. The discipline system of securities science is an organic system composed of branches that study the behavior characteristics and operating rules of the securities market from different angles, mainly including two research fields: traditional securities theory and evolutionary securities theory.