LOF funds (listed open-end funds) can be purchased 1. There are two ways to conduct on-site transactions. On-site trading can be similar to the stock trading price at that time, so can on-site open-end fund subscription and redemption, just like off-site subscription and redemption, which are all based on the net value of the day. 2. OTC transactions, that is, general fund subscription and redemption, are generally the net value/transaction price of the day >; = 1+0.7%, or so, the arbitrage transaction price/net value that can be bought first and then redeemed > = 1+ 1.7%, or so, and the arbitrage can be bought first and then sold.