RE: Misunderstood Trade Volume?1 Apr 2021 13:09
11:59 well it was a question, you might have known :-)
It is a very simple algorithm based on mid price, dependent which side of the mid price the trade falls dictates if flagged Buy or Sell. Problem is mid price is not always accurately placed so trades can fall on the wrong side.
Buy or Sell?
"The London Stock Exchange does not disclose whether a trade is a buy or a sell so this data is estimated based on the trade price received and the LSE-quoted mid-price at the point the trade is placed. It should only be considered an indication and not a recommendation.
Trades priced above the mid-price at the time the trade is placed are labelled as a buy; those priced below the mid-price are sells; and those priced close to the mid-price or declared late are labelled ‘N/A’. "