A method, apparatus and system for portfolio performance prediction of a portfolio of projects include receiving information regarding at least start date delays, duration increases and cost overruns for at least one project of the portfolio of projects, determining at least one cluster for the at least one project from the received information regarding at least the start date delays, duration increases and cost overruns for the at least one project of the portfolio of projects, creating a statistical representation for each of the clusters of the at least one project of the portfolio, and predicting a performance of the portfolio of projects using information regarding the statistical representation of the clusters of the at least one project of the portfolio of projects.