So at 9:30 that is the official opening price for that day? I'm trying to calculate some pivots but I'm not sure what to use as opening price. My charts (Quotetracker) have a line you can add that shows opening price but its no where near the 9:30 open.
9:30 est is the opening price. Pivots may be calculated using different formulas, search the net for some more info.