RE: Just bought 9659786 Feb 2025 11:54
It's because the algorithm on LSE is very basic. It just looks at the mid price and assigns anything under as a sell (red), anything over as a buy (blue) and in the middle as black. Unfortunately when trades are initiated there is no tag assigned to the trade by the broker as to whether its a buy or sell, so the software has to make an 'educated' guess.