SPY daily weekly volume <img src=http://stockcharts.com/c-sc/sc?chart=SPY,uu[1190,1490]dacayiay[dd][pb55!b89!b144][vc60][ill14!ua8,17,9!ua12,25,9]> dac<b>a</b>yyay << linear not nog scale <img src=http://stockcharts.com/c-sc/sc?chart=SPY,uu[1190,1490]wacayiay[dh][pb21!b34!b55][vc60][ill14!ua8,17,9!ua12,25,9]>