Do not communicate. Funds are traded in different places. The external market of the fund is defined as the number of active buying transactions, that is, buying the stocks sold by the buyer at a price lower than or equal to the current one, two and three. The inner disk of the fund refers to the number of active selling transactions, that is to say, if the seller takes the initiative to place an order, the transaction volume is equal to or lower than the current price of buying one, buying two and buying three. So it is not interoperable.