RE: Top up7 Sep 2018 15:20
Brainer - Unless you have a snap shot of the mid-price at the time the strike was created it's almost impossible to determine the polarity of the trade (for the most part). Problem is these system are not very snappy and by the time the trade comes through, it's hard to near impossible to work out the mid at the time.
In lieu of that it's best just to watch the general volume increase and SP direction. My guess is someone probably has a long standing 7-10k sell order at 0.27 that is being nibbled though. Once we get that out the way, which we might today, then this thing will rocket into the 0.3p zone.