The price of fund subscription and redemption is based on the net value of the fund unit. Even so, at the time of subscription and redemption, because the price is based on the net value of the fund unit after the close of the day, we don't know what the transaction price is. This is the so-called "unknown price method".

So when buying, if you have enough time to watch the market trend of the day, it may be safer to decide before the afternoon closing. After all, the changes in the net value of equity funds still have a lot to do with market trends. Similarly, if you want to redeem, you may wish to choose the day when you confirm the strong rise of the market.