How to properly calculate "tick charts"

[Shmulik2828]

When calculating a "tick chart" does one just select a number, e.g., 89, and aggregate 89 trades to define a bar, or is there some sort of calculation including volume?

That is, if I get three trades from my data feed going through (assume ES contract) as follows:

Trade# Price Volume(contracts)
1 1420.25 10
2 1420.25 1
3 1425.50 3


Would this is considered "3" ticks or "14" ticks? Or do people use some other calculation?

Thanks!

 

[jay567]

Quote from Shmulik2828:

When calculating a "tick chart" does one just select a number, e.g., 89, and aggregate 89 trades to define a bar, or is there some sort of calculation including volume?

That is, if I get three trades from my data feed going through (assume ES contract) as follows:

Trade# Price Volume(contracts)
1 1420.25 10
2 1420.25 1
3 1425.50 3


Would this is considered "3" ticks or "14" ticks? Or do people use some other calculation?

Thanks!

I believe this would be counted as 2 ticks for tick charts and 14 contracts for volume charts.