Confluence of in logarithmic.
This underlying seems done.
i know pros like log charts and long, therefore took this one on weekly and the picture is different, nothing above, pure parabolic move, only one line from above is your straight middle line on linear from 2009 bottom and lows Aug10, Jun11, this week running at about 9500
when the price changes significantly linear chart becomes obsolete though. They just help explain the price has shifted paradigm which is a very important information.. however at that point only log charts capture constant percentage diffusion process...
1pt of SP500 now means nothing... it meant a lot 60years ago.