1, the risk of using 100 times high leverage for the external disk is relatively high, and the coefficient of automatic liquidation of the system is very low. Internal disk usage 12.5 times the medium leverage risk is controllable and the system liquidation coefficient is high.

2. The fluctuation of RMB internal market is small, which is suitable for long-term stable investment.

3. The internal disk is managed by a third party of domestic banks.

4. The external disk is supervised by the bank, which cannot be guaranteed by the national laws at present. Generally, it is operated on the company account.

5. The internal market is managed by domestic banks and protected by law.

6. Compared with Shanghai gold, the handling fee for the outer London gold is much higher.