I know there's no way to figure out true volume in the Foreign Exchange market due to its size and lack of regulation.
But would it be just as great to perform relative volume vs absolute volume?
Cases I have in mind include
1. Looking at actual volume of a broker. Since we all follow price charts from a broker anyway, why not look at the quantity behind that tick taht could be comparatively equivalent strength/weakness from the true Foreign Exchange volume
2. Employing quantity. Placing moving average on a quantity information by a broker would provide another insight into what the general Foreign Exchange market is doing.
Only my ideas how to overcome this quantity issue. Would like to hear other's comments