January 21st, 2005, 4:55 am
Hi BM,why is it a 3 factor model ? short rate + long rate + in range accrual ?Is that correct ?Regarding pricing, is it using LS algorithm ? If yes, what basis fct. to choose ?FOr trading, what are the risk factors to watch out ? (e..g long vol, short corr. .. etc.) How to get a distribution for the correlation where I can get a 95% Confidenct interval ?THanks mate,Mr. M.....>>Yes, we do a few of these products. One variant is a callable spread accrual note. In note form the investor gets say a fixed rate that only >>accrues on days (months) where the defined spread is within a limit; for example the €15y swap rate minus the €2y swap rate is more >>than say 0.00% (to bet against the curve inverting). >>Making these callable adds a bit of extra complexity, but from a swap perspective tends to reduce the risk so people are happier to put a >>price on it (although apparently this often is relatively subjective).>>In modelling / pricing terms, the most important thing is the correlation between the rates. Most traders tend to take very conservative >>estimates of this, say >95%. You need at least a 3 factor model, but it is quite easily priced in a Libor market model environment.