big sell order here goldencross, page-3

I dont think that it has anything to do with trying to "shake the tree" fletch66. The reason being is that a cross trade is when a broker executes both a buy and a sell for the same security from one client account to another where both accounts are managed by the same portfolio manage. This means that it does not actually affect the share price like an ordinary transaction but instead represents some big players buying in or buying out of their positions..... If such an order was processed at market, it would have a devastating effect on SIP considering the volume is quite low....