As for trading the QQQ, it is not very volatile. The volume is big, 40-60M shrs/day. If you are used to trading stocks that move a lot (AMCC, BRCM, JNPR, BRCD, ITWO, HGSI), then you will be disappointed with the movement of the QQQ.
The good news on trading QQQ is that you can select it thru...