DislikedThat's how to calculate estimated volatility, it is still not pure volume and the VSA traders that frequent these halls just don't get that.Ignored
DislikedThe whole volume thing in FX is just a poorman's estimate and I can guarantee you that most don't understand or even know the calculations behind whatever indicator they use to trade.Ignored
Big orders don't just come up and engulf the other side all the way up; they wait and iceberg their true size, appearing and disappearing in the ECNs. If a bank has a big commercial or hedge fund order, they have to do that, generally bound by "or better," or by limit caps where they'll be able to pocket a little if they can fill smart.
Bottom line, as you say, we don't know volume, and can't, as the market exists now.