LOF funds can do short-term arbitrage. LOF funds have the net value of funds traded on and off the market, but they are different. Once the net value of A is higher than the net value of B, investors can buy the net value of B, and then transfer it to another trading place by transferring custody, and then sell it at the price of A net value to achieve the purpose of arbitrage.

There are more people arbitrage, which will eventually lead to a net value =B net value. So the two prices will always fluctuate around each other. Arbitrage opportunities are only short-lived opportunities.