With the 7 major futures contracts, (or currency etfs for little guy position sizing) EUR,JPY,CAD,CHF,GBP,AUD,NZD i could cobble together 21 pairs. For example pair1 being EUR/USD / JPY/USD in futures or FXE /FXY in etfs or the forex
cross pair EUR /JPY.
From these 21 pairs a second iteration would produce 210 pairs/pairs or spread/spread and chart them to apply price action, S /R levels, other technicals,
correlation analysis,or any programable/mechanical system.
In a nutshell technicals that are too much/many for a human to track or see.
Example would be
EUR/JPY
-----------
GBP/AUD
The idea , from what i have read in books such as Hedge Fund Market Wizzards,
Is to seek alpha from uncorrelated income streams and reduce variability of returns.
(Im probably being redundant there)
Other traders have said that doing this with stocks is bad allocation of capital
but that may not be the case with the leverage available in forex and futures.
Im just saying...i dont do this.