are you sure it is 488 up? http://www.indexindicators.com/charts/sp500-vs-sp500-stocks-new-highs-new-lows-params-3m-x-x-x/ erie
OP is looking at SP500 advances, not new highs, some would look at SP500 advances-declines (A-D), see below: S&P 500 9/24/2010 00:00 2.12% A-D 448 http://www.stock-charts-analysis.com/
And that means up from the previous close, in other words, they closed higher of Friday than they did on Thursday.
that's a sign market is manipulated to insiders benefit and if you don't have insider info you will lose although Monday is POMO day so must be up
A day-to-day change doesn't mean much - the stocks could've just as easily fallen by just as much the day before. You might be better off looking on a weekly scale if you want to use market performance to develop a bias.
Joe4422: $10,000 Cash at the O'Hare International Airport terminal of your choosing if any one of your annual trading statements for the past 18 years is bigger than mine.