If the Dow Jones goes up by 200 points how are these 200 points measured?

BY Paul Solman  February 8, 2008 at 11:30 AM EST

Question/Comment: If the Dow Jones goes up by 200 points how are these 200 points measured?

Paul Solman: Roughly, the sum of the stock prices of the 30 companies in the Dow Jones industrial average, companies chosen as the biggest players in the US economy, a list that’s from time to time updated: Coke, GM, GE, IBM, etc. Check here for the full list.