The ingenuity of ABC increased the redemption and lost a lot of money. Reason: ABC holds shares every day. If there is a loss, the fund will have less money to redeem after the loss. Moreover, the fund needs a handling fee. When the fund increase is less than the handling fee, the redemption will lose money. The fund is purchased and redeemed according to the amount. If the redemption amount is wrong, it may be because the investor mistook the share for the amount. In fact, the share multiplied by the net value is the total redemption amount.