Most popular posts in 2012 May Portfolio Diversity Random portfolios: 6 steps to a better fund management industry Cross-sectional skewness and kurtosis: stocks and portfolios A tale of two returns (posted in 2010) Asset correlations with minimum variance portfolios The top 7 portfolio optimization problems The quality of variance matrix estimation Correlations and positive-definiteness Exponential decay models Realized efficient frontiers   Most popular posts in 2012 As of 2012 May 31....