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I've seen it two ways. Is it A - spread over average bid/ask or B - spread over dealer ask.
USD:GBP - 0.8955 - 0.8993
is it A) 0.0038 / Avg (0.8955+0.8993) = 0.4234%
or is it B) 0.0038 / 0.8993 = 0.4226%
thx in advance |
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