I am just beginning technical analysis. I notice that when you get a quote from E*Trade, Yahoo, etc., it shows yesterday's close and today's close and that it went up $x or down $x and that there is a difference between the close each day.
But the open is higher/lower today is different than the close on the previous day.
Is that simply because of extended hours trading?
But the open is higher/lower today is different than the close on the previous day.
Is that simply because of extended hours trading?