maryli

what we can see is that change in option value when vol goes up to 30% would be:

1. 23
2. 50
3. 72

if OAS stays the same, the nominal spread will be increased by those numbers and prices will go down.

the durations of these bonds will be probably different and

your decisions will be based also on other objectives.

so I think you cannot make any decision based on these numbers only