Quick Help - Shares History
The graphic shows the history of this share. You can select the time over which
the graphs are shown using the tabbed options at the top, this time scale is used
for both graphs on the left. All the graphs are shown using a log scale on the vertical
axes, the two graphs at the top share the same vertical axis.
The main graph at the
top left shows the best price for people who are offering to sell (in red) and offering to buy (in green)
the share. The graph to the right shows a histogram of the current offers, with the
width of the bar (the x-axis) indicating the number of shares offered at this price
and the y-axis again being the price offered. Offers to sell are again shown in red,
offers to buy are shown in green.
The bottom graph shows the total volume of offers (as number of futures offered) over
time as a thick black line. When offers are matched a thick blue vertical line indicates
the number of shares exchanged at this time.