HANDBOOK 第五版说:CALL SWAPTION =OPTION TO PAY FLOATING AND RECEIVE FIXED
但是貌似网上查到的是:A swaption in which the buyer has the right to enter into a swap as a fixed-rate payer.
是HANDBOOK错了吧
查了查书,Handbook P211
Swaptions are OTC options that give the buyer the right to enter a swap at a fixed point in time at specified terms, including a fixed coupon rate.These contracts take many forms.只是说在固定时点进入互换,其中包含固定利率,而没有指定是支付还是收取。应该说,handbook没有将swaption局限于call一种。
212页还有各种swaption的总结。
It has been mentioned in the handbook that call swaption is in fact receiver option (table 8-3, p203,4th edition), so CALL SWAPTION =OPTION TO PAY FLOATING AND RECEICE FIXED
john hull 的书上 :"If a swaption gives the holder the right to pay / rec floating and rec / pay fixed, it is a call / put option on the fixed-rate bond with a strike price equal to the principal."
其中 因为 at the inception of a swap, the value of floating leg always equals the notional principal of the swap.