<< trying to eyeball every trade to determine if its a buy or sell is useless..too many variables >>
I like the way iHub defines a buy or sell. They look at the spread at the time of the trade and determine if the trade was closer to the bid or the offer. If it was closer to the bid, then it was a sell. Conversely, if it was closer to the offer, then it was a buy. If it was in the middle, then it wasn't either. That makes a lot of sense to me.
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