A .zip file contains a series of scr ipts that were used in the MathWorks webinar \"Using MATLAB to Develop Portfolio Optimization Models.\" The scr ipts generate 3D efficient frontiers for a universe of 44 stocks with time as the third axis. Additional scr ipts perform various ex-ante and ex-post analyses. Results are generated with and without market adjustments in the data. A readme.txt. file in the .zip folder describes each scr ipt and how to use it