你说的应该是可转债吧。

可转债有期权债权双重性质，这个晓得，但我碰到个题却说认股权证也有债权期权，就不理解了，

楼主说的是traditional warrant.

There are two types of warrants: "traditional" warrants and so-called naked warrants.

Traditional warrants are issued in conjunction with a bond (known as a warrant-linked bond), and represent the right to acquire shares in the entity issuing the bond. In other words, the writer of a traditional warrant is also the issuer of the underlying instrument. Warrants are issued in this way as a 'sweetener' to make the bond issue more attractive, and to reduce the interest rate that must be offered in order to sell the bond issue.

Naked warrants are issued without an accompanying bond, and like traditional warrants, are traded on the stock exchange. They are typically issued by banks and securities firms. These are also refered to as covered warrants. The writer of a naked warrant need not be the issuer of the underlying instrument. A naked warrant is essentially an option with a very long time to expiry. Therefore an employee stock option is also equivalent to a warrant.

牛，纯英文啊 4# brotherjohn