Looked like Bloomberg only to me - I couldn't see anything else. The monitors are distinctive and you see the Bloomberg channel on in the background all the time so a deal was probably done.
How else did you expect him to do it when they were clearly executing through brokers rather than electronically themselves?
And you can see why the TV people would want this to use 'phone execution to brokers - you get people screwing it under pressure and its more interesting (arguably) than...
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http://www.telegraph.co.uk/culture/tvandradio/4162302/Million-Dollar-Traders--Lex-Van-Dam-and-his-million-dollar-TV-gamble.html
Funny...............
The series also provides an insight into a world into which a fly-on-the-wall documentary would not be allowed to pry: “Nobody on a real...