November 14th, 2005, 8:25 am
If I'm right, it's an option where the nominal decreases if at some spot fixings is above/below a level.To price it, you have to price for example:- a long position in a call for a nominal of 100, maturity T- a short position in a strip of X call with a european trigger (the level), maturity Ti < T, foward delivery at T and a nominal equals to 100/X where X is the number of stripped options.Maybe it will help you