You'll lose money first because that 30-year Treasury bond, with its 4.5% coupon rate of interest, will look pretty pathetic in a year if 30-year bonds are paying 6%.
你亏钱首先是因为持有了30年期的国债，它的票面利率是4.5%，如果一年之内30年国债的利率升到6%，那你手头的债券就亏大发了。
Deep discount bond note: bond with relatively low-coupon rate of interest offered with a discount in excess of what can normally be treated as capital gain by the investor.
按较大折扣发行的债券，大幅折价债券：这类债券通常利率较低，发行时的折扣率超过投资者一般所认为的资本收益。
It also helps to mark out the pricing formulas of call option in terms of zero - coupon bond and interest - rate caps.
在该测度基础上，构造鞅过程可以对一些固定收益衍生品定价，进一步给出零息债券的欧式期权、利率上限期权的定价公式。
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