I am trying to create a "Hybrid" price to do some research with. Basically what I am looking to do is create a price based upon the values of 3 other prices, each equally weighed. For example I would like to combine the values say three securities X, Y, and Z where each will constitute 33.33333% of the value of the "hybrid" price. Thus, changes in X will have a 33.3333% change in the hybrid price. Anyone willing to help me out regarding how I can do this? Thanks in advance.