02:44 (1.5X)
callable bond = option free bond + short call option
putable bond = option free bond + long put option
请问怎么理解对于investor来说,callable bond和 putable bond分别是short call and long put?特别是callable bond,investor买了一个callable bond,相当与买了一个option free bond再short call option。investor都买债券了,买不是相当于long么,然后为什么又是相当于short call呢?