Every so often one opens up but the problem facing UK brokers is that when you offer 'DMA' spread bets how do you finance the betting duty charge?
Each time one of these operations sets up it only lasts until they get their first tax charge and then the team behind the genius plan suddenly learn why it can't be done.
Obviously, one solution is to base yourself in a non taxable betting jurisdiction but then you hit the issue that when running what is essentially a futures based revenue model the cost of marketing and generally running the operation is much higher than the potential revenues from what is a very small market segment.
I believe I am right is saying that even ProSpreads now offer OTC as well as DMA as a result.