Wipe out 4 columns at 9:29 EDT
Because of the stocks that are posted with a 15 min delay, confusions would be avoided if "change", "change %","volume", and "day chart" was wiped out just before the market opens so that between 9:30 and 9:45 we would know that it's not YESTERDAY'S quote.
Andy Bold commented
You zero out the Toronto stock exchange, pre-market so why don't you zero out all the Toronto stocks for those 2 columns ????