David Mercer, LMAX Exchange CEO, comments on recent discussions of randomisation, in particular questioning why some FX venues feel it necessary to introduce the model of randomisation when matching orders. He asks if randomisation is the best way to trade, and if it is why has it not been introduced across all asset classes as well as being introduced across all currency pairs. Mercer speculates that randomisation might be a short term fix to provide greater transparency for the implementing venues, however states he personally does not see a valid reason for any venue to this pursue this model.