Posts Tagged ‘Time series’

Off-sheet accounting

20 Aug

For mid-week entertainment, this full-page ad appeared in the Wall Street Journal recently:


The vertical axis says "% NYSE of All Market Share Volume".  The time-line is from July 05 to beyond July 08.  The text in the black box is "Matched Market Share: July 11, 2008".

When it's so obvious, it's probably not obvious.  The big story is off the chart: what happened to the other 50% of the volume over the years?

Faced with this, one reaches for the pie chart (... almost).

Small add (8/21/2008):


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