The way the DJIA is quoted, the "open" is yesterday's closes plus the very first trade of today. This means Dow data rarely gaps on the open, but of course this is misleading. In a few seconds, all opeing trades for all 30 Dow stocks have occurred and the Dow moves to it's real opening price. What do you guys do to get an accurate measure for the opening of the Dow? Look at where the DIA's open (assuming that the DIA's will be priced according to premarket, futures, etc. and come pretty close to where the "real" Dow open should be)? Look at the $INDU or $DJI after a few seconds? Some other method? Thanks a lot.