Loan stock trading is a high-risk investment behavior, and it is not illegal in itself. But in China, loans usually need to be clearly used. If it is used for investment activities such as stock trading, it may be regarded as a breach of contract. If you violate the provisions of the loan contract, you may face the following consequences:

1. Repay the loan in advance: the bank or lending institution may require you to repay the loan immediately, which may lead to the break of your capital chain.

2. Penalty interest: If you fail to repay the loan on time according to the loan contract, you may have a higher penalty interest, further increasing your financial burden.

3. Impact on credit history: A loan default will affect your personal credit history, which may adversely affect your future loan and credit card applications.

4. Legal proceedings: In extreme cases, banks or lending institutions may recover loans from you through legal channels, which may lead you to bear legal risks.

If you have been found to be involved in loan stock trading, it is recommended to communicate with banks or lending institutions as soon as possible to understand possible solutions and take measures to correct the breach of contract as soon as possible. At the same time, we should be cautious about investment risks and avoid blind investment causing greater losses.