[Quantlib-users] How to handle stubs

[Trent M. <tr...@ma...>]

Hi all,

I've been looking at CZK and market practice for the Ibors there seems to be to switch to one of the shorter dated Ibor Indexes when there is a stub (believe they are actually just interpolated and put into a quote in Bloomberg). The QuantLib model is spot on at pricing swaps except when there is a stub, since QuantLib is using my 3m or 6m index interpolation for the stub. What is the recommended way of handling this? It seems that a brute force way would be to build all the various indexes and then write a index chooser function to pick which one to use to forecast the fixings, but I'm wondering if there's a more straightforward way.

Thanks in advance,
Trent Maetzold