A method, system and article of manufacture are disclosed for constructing corner models for multiple performance targets for circuit simulations. The method includes identifying N (N≧2) performance targets F1, F2, . . . , FN, and obtaining their correlation matrix R, calculating a normalized joint probability density (JPD); and building a common and optimal corner for the N targets. The method further includes constructing corner models to cover both lower and upper bounds of the performance targets; and determining an optimal common corner solution for each corner by maximizing a normalized JPD among all possible common corner solutions for that corner.