1. The inner disk refers to the transaction at the purchase price, and the number of transactions is added to the inner disk, while the outer disk refers to the transaction at the selling price, and the number of transactions is added to the outer disk. When the number of transactions in the internal market is much larger than that in the external market, it means that there are more sales orders in the market, which may fall in the later stage of the market; When the number of transactions in the external market is much larger than that in the internal market, it means that there are more buying orders in the market, which may rise in the later stage of the market.
2. When the trading volume column is short and gradually longer, the index is also rising synchronously, and the volume and price match, and the market may continue to rise in the later period, which can be followed up; When the index rises, the volume and energy column shrinks and the volume and price do not match, then the market may run in the opposite direction in the later period, and investors will mainly wait and see.