@Curt Renz has a good reply, but I thought I should add that the level of these indexes is completely arbitrary. The index value is calculated by adding up all the relevant firm's market caps and dividing by an arbitrary number to scale the index. That's why it's stupid for financial reporters to talk about the Dow being up 20 points; those "points" are meaningless units. The radio show Marketplace has finally shifted to reporting percentage changes, at least most of the time.I didn't think the index itself tracked everything on the Nasdaq, just the top 100... Otherwise the index value would be higher than the Dow.