leverage would be the same, but the gain would be (potentially) bigger since you're choosing from the better-performing part of the dow. it's the same thing zeev does with his "Q": play a market turn with a handful of hotties.
Quote from OnTheEdge:
Ya, but if we're going to buy a small basket of DOW stocks, won't we have the same leverage problem, or worse, than we have with the DIA?

