Using the Rydex Funds,,,,,,,,,,,,RYTNX(SP500x2) for me,,,, do your back testing,, 6/16/2000 was start of this fund,,, achilies with AIM is running out of cash as you all know, Since these are 2x the market dynamic funds lots of cash is warranted to start with,,, even 80% cash 20% stock runs cash dry back tested to 6/16/2000,,, 84% cash runs a impressive 32% gain on a stock almost down 50% since inception,, Aim on! Ken