Outer disk refers to spot gold, also known as London gold, which is a spot transaction and refers to delivery after the transaction is completed or within a few days. Spot gold is an international investment product, which is an investment and financial management project formed by gold companies establishing trading platforms and conducting online transactions with market traders in the form of leverage ratio.

The inner disk is relative to the outer disk. Inner disk refers to various precious metal trading centers established in China by imitating the model of outer disk. The inner disk comes from the outer disk. The fundamental difference between them is that one can only be traded in China and the other is traded globally.

In fact, the external market is not illegal. To some extent, the external market is much more standardized than the internal market. The internal market is approved by a province, and there is no actual transaction in the form of market maker model, which is not allowed by the state; At present, there is a dispute about whether the external market is illegal, mainly because some illegal platform vendors in the market set up trading platforms without authorization and use gambling to deceive investors, which is often called black platforms; If it is a standardized platform provider, it is feasible to invest in the external market, so investors need to consult and identify when choosing a platform. At present, there is no legal broker in China, which is mainly due to the lack of effective supervision mechanism for this industry in China and the fact that the domestic financial market has not yet fully integrated with the international market.

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