I did a very simple exercise with outstanding performance results. I would like to know if there is a mistake(s). Can anyone review my exercise and find out if it is ok or if I am missing something? 31/12/1974 - initial capital 1000$ 80% of portofolio in T-notes 20% as margin for Dow Jones future Different scenario according to the leverage choosen. No leverage - ending capital at 31/12/2004 86.356$ (17% annual return on average) 100% leverage - ending capital at 31/12/2004 680.302$ (28.1% annual return on average) It seems too easy. Comments? P.S. I am attaching the spreadsheet with all the details.