1. A method of analyzing risk in a portfolio, the portfolio including at least two of a plurality of products traded on an exchange, the method comprising: determining a correlation between first and second products of the at least two products; computing a first risk offset based on the correlation; assigning the first risk offset to the first product; computing a second risk offset based on the correlation and a compensating factor, the second risk offset being different from the first risk offset; and assigning the second risk offset to the second product.