Excerpt: Up until the 1970's foreign currency trading was conducted over the phone by primarily institutional investors. In what was a relatively closed market there was very little transparency in pricing information and a large gap between interdealer trading and dealer-customer trading.
Full article:
https://www.fxtools.co/FX-algorithm
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Full article:
https://www.fxtools.co/FX-algorithm
Sent from my M2004J19C using Tapatalk