>A tax on uncompleted transactions might also help here. I agree. My understanding is that regulations in my own country (Canada) are being put in place to mit

>A tax on uncompleted transactions might also help here. I agree. My understanding is that regulations in my own country (Canada) are being put in place to mitigate such problems. I just think it is important to maintain the distinction between high frequency trading and high frequency quoting. They should not be condemned as one entity.