bobjack- I was curious about the expenses in running the ETF, I had read somewhere that QLD had expenses & therefore would not return exactly 2x over time because of this expense. I know mutual etc. have expenses, but obviously you can't short them. I'm not exactly sure how this works with ETFs. It seems if you can short a 2x leveraged fund you would get more in return in a down market because of the expenses. Obviously this doesn't make sense to me that you could do this so thats why I'm confused.