债券的推定损益产生于债券的推定赎回。公司债券的推定赎回是就企业集团而言的。企业集团内部持有债券产生于以下两种情况:第一,集团内一成员企业持有的另一成员企业债券是直接购自该发行企业;第二,集团内一成员企业持有的另一成员企业债券是购自集团外持券人。在第二种情况下就产生了债券的推定损益。企业集团内一成员企业购买另一成员企业已发行在外的债券,从企业集团的立场看,可推定该债券已被赎回;从发行方来看,其债券尚被 The presumption of profit or loss of bonds arises from the presumption of redemption of bonds. The presumption of redemption of corporate bonds is in terms of corporate groups. The holding of bonds within an enterprise group results from the following two situations: First, another member corporate bond held by a member company in the group is directly purchased from the issuing company; second, another member company within the group holds another Member corporate bonds are purchased from group outsiders. In the second case, there is a putative profit or loss on the bond. A member company within an enterprise group purchases a bond that has been issued by another member company. From the standpoint of the enterprise group, it can be assumed that the bond has been redeemed; from the perspective of the issuer, the bond is still used.