Tick chart for JP225, showing each change in the ask or bid price. (If the spread is
very tight then the lines may overlap, and only the ask line may be visible.)
As well as a plain tick chart, you can use the "Tick speed" mode to add an indicator showing how long it has taken
for the last N ticks to happen. The lower the histogram, the faster the market is moving.
The "Timed" mode still shows each change in the ask or bid price, but the X axis of the chart is set to
constant units of time. You can use this to view individual ticks while still being able to distinguish between
fast and slow periods in the market.
The "Candles" mode draws tick candles. These are candles which form each time that N ticks happen, rather than
being time-based.
The Nikkei 225 is a share index of the largest companies listed on the Tokyo stock exchange. Among the many
high-profile members of the index are Sony and Toyota. The Nikkei index is unusual
in that constituents are weighted by price, not by market capitalisation, and it is therefore possible
for the index to be moved disproportionately by relatively small companies.
Challenges