Some investment advisors like to tout the so-called Endowment Model of investing--mimicking the investment methods of the endowment funds of Harvard, Yale, and other Ivy League schools. Once upon a time it was working. But through 2015, according to data from Harvard, which tracks 812 schools, the average endowment earned only 6.3% a year over the last 10 years before fees, compared with 6.8% for a passive 60%/40% blend of U.S. stocks and bonds. Steve and Sinclair have the Fortune Magazine report on an idea that may appear to be floundering!