need a line clearer, page-33

Someone has just explained the process being employed.

It would seem that as soon as there is a sell order executed, that another buy order is generated for one third of the sell order (it will naturally occur at a higher price).

The automated systems are generated by "black boxes" that some broking houses own.

In this instance, it would appear that they have been instructed to ensure that they generate one third of all the buy orders today and the box is programmed accordingly.