http://stockcharts.com/c-sc/sc?s=%24NYAD&p=D&yr=0&mn=8&dy=13&i=p44619271049&a=382915168&r=1480693261675 chart 2 - all these chart elements update once daily, After each day's close Note the S&P 1500 index price action and its daily Advance-Decline values are shown http://stockcharts.com/c-sc/sc?s=%21NEWHISPX&p=D&st=2013-09-20&en=today&i=p72544685945&a=354090573&r=1480693431028 chart 3 - the internals update only after day's close * internals for the NYSE common stocks only (not the all issues version) http://stockcharts.com/c-sc/sc?s=%24NYA&p=D&yr=3&mn=0&dy=0&i=p11394568343&a=340963780&r=1480693843209